Best 1/2 Inch Angle Grinders: 15 Spec-Based Picks
We compared 15 models using only published specifications. See which 1/2 inch angle grinder fits your battery ecosystem and cutting needs.
By GaugeKit Editorial Team 7 min read
As Amazon Associates, we earn from qualifying purchases. This means we may receive a small commission at no extra cost to you if you click through and make a purchase.
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
Finding the best 1 2 inch angle grinders requires looking at the numbers. We compared 15 models based strictly on the specifications published on the listings. Our top pick is the DEWALT 60V MAX 4-1/2 to 6-Inch Angle Grinder. It leads because it supports 6-inch wheels for heavy cutting tasks. This capacity exceeds the standard 4-1/2-inch limit found on most other tools in this group. You need to decide if that extra cutting power is worth the battery ecosystem commitment. This guide helps you choose the right tool for your specific wheel size and power needs.
Match the Voltage to Your Battery Ecosystem
Most listed grinders use 20V batteries, but the top pick runs on 60V FLEXVOLT. You must choose the voltage that matches your existing tools. This ensures you can use the same batteries. All models share a 1/2 inch chuck. Select the power system you already own to avoid buying extra batteries.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | DEWALT 60V MAX 4-1/2 to 6-Inch Angle Grinder Best overall | heavy cutting with 6-inch wheels | |
| 2 | DEWALT 4-1/2 to 5-Inch Paddle Switch Angle Grinder Also great | Users with FLEXVOLT batteries needing high power | |
| 3 | Makita 9564CV 4-1/2-Inch Corded Grinder Best corded | continuous heavy-duty stone grinding | |
| 4 | DEWALT 20V MAX XR Variable Speed Angle Grinder Also great | Users needing variable speed and brushless power | |
| 5 | DEWALT 20V MAX 4-1/2-Inch Grinder Kit Best premium | users needing a complete cordless kit | |
| 6 | DEWALT ATOMIC 4-1/2-Inch Angle Grinder Also great | tight spaces with existing 20V MAX batteries | |
| 7 | DEWALT 20V 4-1/2-Inch Slide-Switch Grinder Best budget | Users wanting kickback safety and a slide switch | |
| 8 | Milwaukee M18 FUEL 4-1/2-6 in. Grinder Also great | heavy-duty cutting with larger discs | |
| 9 | DEWALT XR 4-1/2 to 5-Inch Variable Speed Grinder Also great | Users needing dual wheel size compatibility | |
| 10 | Milwaukee M18 Cordless 4-1/2-Inch Grinder Kit Also great | users wanting a complete kit with paddle switch | |
| 11 | DEWALT 20V MAX XR 4-1/2 – 5 in. Brushless Grinder Kit Also great | safety-focused users needing 5-inch wheel support | |
| 12 | CRAFTSMAN V20 4-1/2-Inch Angle Grinder Kit Also great | DIYers needing a complete, durable angle grinder kit | |
| 13 | Milwaukee M18 Fuel 4-1/2-Inch / 5-Inch Angle Grinder Also great | Users needing 4-1/2-inch and 5-inch wheel versatility | |
| 14 | Makita 18V LXT Brushless 4-1/2 / 5-Inch Grinder Best 18v | Makita 18V users seeking safety features | |
| 15 | DEWALT 20V MAX 4-1/2-Inch Cordless Grinder Kit Also great | users wanting a complete kit with slide-switch |
The best fit for you
- You need to cut with 6-inch wheels – DEWALT 60V MAX 4-1/2 to 6-Inch Angle Grinder – It accepts 6-inch wheels and uses the 60V FLEXVOLT platform for high power.
- You want a corded grinder for stone – Makita 9564CV 4-1/2-Inch Corded Grinder – It is a corded model with variable speed control for continuous heavy-duty grinding.
- You need a complete kit with batteries – DEWALT 20V MAX 4-1/2-Inch Grinder Kit – It includes two batteries and a charger in a ready-to-use 20V MAX kit.
- You work in tight spaces with existing batteries – DEWALT ATOMIC 4-1/2-Inch Angle Grinder – It is a compact 20V MAX ATOMIC bare tool designed for confined areas.
- You need a slide switch for safety – DEWALT 20V 4-1/2-Inch Slide-Switch Grinder – It features a slide switch and a kickback brake for enhanced one-handed control.
DEWALT 60V MAX 4-1/2 to 6-Inch Angle Grinder
Best for: heavy cutting with 6-inch wheels
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2-Inch to 6-Inch
- Voltage
- 60V MAX*
- Maximum Speed
- 9000 rpm
- Braking System
- Kickback Brake
- Configuration
- Tool Only
This DEWALT FLEXVOLT grinder handles 4-1/2 to 6-inch wheels. It delivers 9000 rpm no-load speed. The 13-amp motor equivalent provides up to 30% more power than the DCG414. You get a kickback brake for safety. It weighs 1 pound. This tool suits users needing high power for larger cutting wheels in a compact, cordless format.
- Handles 4-1/2 to 6-inch wheel diameters
- 9000 rpm no-load speed
- 13 Amp motor equivalent power
- Kickback Brake engages on pinch or stall
- Tool-only configuration requires separate battery purchase
- Higher 60V MAX* voltage may exceed needs for light tasks
- 1 pound weight adds bulk compared to smaller 20V models
- You need to cut with 6-inch wheels
- You want high power for heavy grinding
- You already own DEWALT 60V MAX* batteries
- You only use 4-1/2-inch wheels
- You prefer a complete kit with battery and charger
- You need a lightweight tool for overhead work
Verdict: DEWALT FLEXVOLT 60V 4-1/2 to 6-Inch Grinder delivers superior power for users cutting with larger wheels. It is ideal for professionals who already have 60V batteries and need maximum cutting capacity.
DEWALT 4-1/2 to 5-Inch Paddle Switch Angle Grinder
Best for: Users with FLEXVOLT batteries needing high power
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2-Inch to 5-Inch
- Voltage
- 20V MAX*
- Switch Type
- Paddle Switch
- Braking System
- Kickback Brake
- Configuration
- Tool Only
This DEWALT angle grinder features a paddle switch and handles 4-1/2-inch to 5-inch wheels. It delivers up to 54% more power when paired with FLEXVOLT batteries. The tool includes a Kickback Brake and E-CLUTCH system for safety. Weighing one pound, it is a bare tool compatible with all DEWALT 20V MAX* and FLEXVOLT batteries. You get robust performance for cutting and grinding tasks.
- Up to 54% more power with FLEXVOLT batteries
- Kickback Brake engages with maximum force
- E-CLUTCH shuts down motor in under a tenth of a second
- Compatible with all DEWALT 20V MAX* and FLEXVOLT batteries
- One pound weight is heavier than many 20V MAX* competitors
- Paddle switch requires two hands to operate safely
- You use FLEXVOLT batteries for higher power output
- You prefer the control of a paddle switch
- You need robust safety features like E-CLUTCH
- You prefer a trigger switch for one-handed operation
- You want a lighter tool for extended overhead use
- You already own only standard 20V MAX* batteries
Verdict: DEWALT 20V MAX* FLEXVOLT Advantage Paddle Grinder suits users who prioritize maximum power and safety systems. It is ideal for those who already invest in the FLEXVOLT battery ecosystem.
Makita 9564CV 4-1/2-Inch Corded Grinder
Best for: continuous heavy-duty stone grinding
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2-Inch
- Maximum Speed
- 10,500 RPM
- Included Tools
- Grinder
- Power Source
- Corded
- Configuration
- Bare Tool
This Makita 9564CV is a corded angle grinder designed for continuous heavy-duty work. It features a 13-amp motor delivering 10,500 RPM with variable speed control from 2,800 to 10,500 RPM. The 16-inch length and 6-pound weight provide a sturdy build for stone grinding. You get constant speed control to maintain power under load and a soft start for smooth operation. It is ideal for users who need reliable, uninterrupted power.
- 13-amp motor delivers high output
- Variable speed range of 2,800 to 10,500 RPM
- Sass technology prevents gear damage
- Constant speed control maintains RPM under load
- Heavier at 6 pounds compared to cordless competitors
- Longer 16-inch length may reduce maneuverability in tight spaces
- Fixed 10,500 RPM maximum speed limits high-speed cutting options
- You need continuous power for long grinding sessions
- You work with stone or masonry requiring variable speeds
- You prefer the reliability of a corded connection
- You require a lightweight tool for overhead work
- You need battery-powered flexibility for job sites
- You want a more compact design for tight areas
Verdict: Makita 9564CV 4-1/2-Inch Corded Grinder suits professionals who prioritize consistent power and durability over portability. It is the right choice for stationary or heavy-duty grinding tasks where corded reliability is essential.
DEWALT 20V MAX XR Variable Speed Angle Grinder
Best for: Users needing variable speed and brushless power
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2 in. – 5 in.
- Voltage
- 20V MAX
- Maximum Speed
- 9,000 RPM
- Motor Type
- Brushless
- Switch Type
- Paddle switch
This DEWALT 20V MAX XR grinder features a brushless motor delivering up to 9,000 RPM and 1,640 MWO. It accepts 4-1/2 to 5-inch wheels and uses a paddle switch for control. Weighing 4.85 lbs, it offers cordless freedom with all 20V MAX batteries. The variable speed dial helps you adjust for different materials. It is a solid choice for users who need portable power without the cord.
- Brushless motor for up to 9,000 RPM
- Variable speed control for material optimization
- Anti-rotation system for better control
- Compatible with all 20V MAX batteries
- Heavier at 4.85 lbs than some competitors
- Paddle switch may not suit all users
- Tool only configuration requires separate purchase
- You need variable speed for delicate work
- You already own DEWALT 20V MAX batteries
- You prefer paddle switch operation
- You require a kit with batteries included
- You prefer slide switch operation
- You need a lighter tool under 4 lbs
Verdict: DEWALT 20V MAX XR Brushless 4-1/2 in. Grinder suits professionals who value brushless efficiency and variable speed control. It fits users already invested in the 20V MAX ecosystem who do not mind the paddle switch style.
DEWALT 20V MAX 4-1/2-Inch Grinder Kit
Best for: users needing a complete cordless kit
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2-Inch
- Voltage
- 20V MAX*
- Maximum Speed
- 8,000 rpm
- Switch Type
- 2-finger trigger switch
- Configuration
- Tool Kit
This DEWALT 20V MAX* angle grinder kit delivers 8,000 rpm for cutting and grinding tasks. It features a 4-1/2-inch wheel diameter and a 2-finger trigger switch for control. The kit includes two 5.0 amp hour batteries and a side handle. You get a complete setup ready for immediate use. The tool-free wheel release and adjustable guard add convenience. This configuration suits users who need a reliable cordless solution with included power sources.
- 8,000 rpm maximum speed
- Two 5.0 amp hour batteries included
- Tool-free wheel release
- Adjustable tool-free guard
- Heavier at 5.8 kilograms
- Lower 8,000 rpm compared to higher-end models
- 2-finger trigger switch limits continuous operation
- You need a complete kit with batteries
- You prefer tool-free wheel changes
- You want adjustable guard positioning
- You require higher than 8,000 rpm
- You prefer a lighter tool under 5 kilograms
- You need a paddle switch for continuous use
Verdict: DEWALT 20V MAX 4-1/2-Inch Angle Grinder Kit provides a solid 8,000 rpm performance with two included batteries. It fits users who value a complete kit with tool-free adjustments over maximum speed or minimal weight.
DEWALT ATOMIC 4-1/2-Inch Angle Grinder
Best for: tight spaces with existing 20V MAX batteries
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2 in.
- Voltage
- 20V MAX
- Braking System
- Electronic brake
- Configuration
- Tool Only
- Included Tools
- Grinder
This DeWalt 20V MAX ATOMIC grinder features a slim 12-inch body and weighs 4.65 pounds. It uses an electronic brake to stop the wheel in 1.25 seconds and includes an anti-rotation system to reduce reactionary torque. The tool only configuration makes it ideal for users who already own compatible batteries. Its compact design allows access into tight spaces, while the spindle lock simplifies wheel changes without extra wrenches.
- Electronic brake stops the wheel within 1.25 seconds.
- Anti-rotation system reduces reactionary torque during bind-up events.
- Spindle lock allows quick wheel changes without multiple wrenches.
- Slim ergonomic design fits into ultra-tight spaces.
- Heavier at 4.65 pounds compared to lighter cordless alternatives.
- Longer 12-inch length may reduce maneuverability in confined areas.
- Tool-only configuration requires separate battery purchase.
- You need a compact grinder for tight spaces.
- You already own DeWalt 20V MAX batteries.
- You value quick wheel changes via spindle lock.
- You require a complete kit with batteries and charger.
- You prefer a lighter tool under 4 pounds.
- You need a corded grinder for unlimited runtime.
Verdict: DeWalt 20V MAX ATOMIC 4-1/2 Angle Grinder fits users who already have 20V MAX batteries and need a compact tool for tight spaces. Its electronic brake and anti-rotation system provide control, though the weight and length may hinder some users.
DEWALT 20V 4-1/2-Inch Slide-Switch Grinder
Best for: Users wanting kickback safety and a slide switch
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2-Inch
- Voltage
- 20V MAX*
- Motor Type
- Brushless
- Switch Type
- Slide Switch
- Braking System
- Kickback Brake
This DEWALT 20V MAX XR grinder uses a brushless motor and a 4-1/2-inch wheel. It features a slide switch for operation and includes a kickback brake that stops the wheel in 2 seconds or less. The tool weighs 3.75 pounds and measures 12.9 inches long. It suits users who need reliable power loss reset and quick braking for safety during cutting or grinding tasks.
- Brushless motor requires no brush changes
- Kickback brake stops wheel in 2 seconds or less
- Power Loss Reset prevents accidental restarts
- Slide switch configuration for easy operation
- Heavier at 3.75 pounds than some lighter competitors
- Longer at 12.9 inches, which may affect tight spaces
- You want a brushless motor for longer life
- You need a kickback brake for safety
- You prefer a slide switch over a paddle
- You need a kit with batteries and charger
- You require a 6-inch wheel diameter
- You need a lighter tool under 3 pounds
Verdict: DEWALT 20V MAX XR Slide Switch Angle Grinder fits users who prioritize safety features like the kickback brake and the convenience of a slide switch. It is a solid choice for those who do not mind the extra weight for robust braking performance.
Milwaukee M18 FUEL 4-1/2-6 in. Grinder
Best for: heavy-duty cutting with larger discs
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2 in. – 6 in.
- Switch Type
- No-Lock Paddle Switch
- Braking System
- Braking
- Configuration
- Tool Only
- Included Tools
- Grinder
This Milwaukee M18 FUEL model accepts 4-1/2 to 6-inch wheels. It weighs 4.5 pounds and measures 12.5 inches long. The tool features a braking system and a no-lock paddle switch. You get a bare tool configuration. This setup suits users who already own M18 batteries. It provides robust cutting power for larger discs.
- Accepts 4-1/2 to 6-inch wheels
- Integrated braking system
- No-lock paddle switch
- Weighs 4.5 pounds
- Heavier at 4.5 pounds
- Larger 12.5-inch length
- Tool only configuration
- You already have M18 batteries
- You need to cut with 6-inch discs
- You prefer a paddle switch
- You want a complete kit
- You need a lighter tool
- You prefer a smaller 4-1/2-inch max size
Verdict: Milwaukee M18 FUEL 4-1/2-6 in. Grinder fits professionals who need larger cutting capacity and already use the M18 system. The braking system and paddle switch offer control for heavy-duty tasks.
DEWALT XR 4-1/2 to 5-Inch Variable Speed Grinder
Best for: Users needing dual wheel size compatibility
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2 in. – 5 in.
- Voltage
- 20V MAX
- Maximum Speed
- 9,000 RPM
- Motor Type
- Brushless
- Switch Type
- Slide switch
This DEWALT angle grinder uses a brushless motor to reach 9,000 RPM with variable speed control. It accepts 4-1/2 inch and 5 inch wheels. The slide switch offers direct control. An anti-rotation system helps manage excessive motion. It is a bare tool, so you need a compatible battery. This setup suits users who need high power and adaptable wheel sizes for various cutting and grinding tasks.
- Brushless motor delivers up to 9,000 RPM no-load speed
- Variable speed allows adjustment for different materials
- Anti-rotation system senses and shuts down excessive motion
- Accepts both 4-1/2 inch and 5 inch wheels
- Sold as a tool only, requiring a separate battery purchase
- Maximum speed of 9,000 RPM is lower than some 6,000+ RPM competitors in this guide
- Requires a separate TOOL CONNECT chip for asset management features
- You need a grinder that handles both 4-1/2 inch and 5 inch discs
- You already own DEWALT 20V MAX batteries
- You want variable speed control for delicate or tough materials
- You prefer a paddle switch over a slide switch
- You want a complete kit with batteries and charger included
- You require a higher maximum speed than 9,000 RPM
Verdict: DEWALT 20V MAX XR 4-1/2-5 in. Grinder offers versatile wheel compatibility and robust brushless performance for pros who already have the battery ecosystem. It fits users who value adjustable speed and anti-rotation safety over a higher top RPM.
Milwaukee M18 Cordless 4-1/2-Inch Grinder Kit
Best for: users wanting a complete kit with paddle switch
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2"
- Motor Type
- 4-pole
- Switch Type
- Paddle switch
- Configuration
- Kit
- Included Tools
- Grinder
This 4-1/2 inch grinder features a 4-pole motor and a paddle switch. It weighs 15.9 ounces. The kit includes the tool, battery, and charger. You get cordless power for cutting and grinding. The L-shape intake vents protect internal components. This setup suits users who need a complete, ready-to-use solution for various work environments.
- 4-pole motor delivers maximum power
- Paddle switch allows easy use in different positions
- L-shape intake vents protect internal components
- Kit includes battery and charger
- 15.9 ounces is heavier than many brushless competitors
- 4-pole motor is less efficient than brushless designs
- You want a complete kit with battery and charger
- You prefer the comfort of a paddle switch
- You need protection from debris via L-shape vents
- You prioritize the lightest possible tool weight
- You prefer brushless motor efficiency
- You already own compatible batteries and chargers
Verdict: Milwaukee M18 4-1/2" Cordless Grinder offers a complete kit with a durable 4-pole motor. It fits users who value paddle switch comfort and included accessories over minimal weight.
DEWALT 20V MAX XR 4-1/2 – 5 in. Brushless Grinder Kit
Best for: safety-focused users needing 5-inch wheel support
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2 in. – 5 in.
- Voltage
- 20V MAX
- Maximum Speed
- 9,000 RPM
- Motor Type
- Brushless
- Configuration
- Kit
This 20V MAX XR brushless angle grinder kit delivers up to 9,000 RPM no-load speed and 1,590 MWO. It accepts 4-1/2-inch and 5-inch wheels. The anti-rotation system helps maximize control by shutting down excessive rotational motion. It includes the grinder and XR POWERPACK batteries. This setup suits users who need high power and safety features in a cordless package.
- Brushless motor delivers up to 9,000 RPM no-load speed
- Anti-rotation system shuts down if rotational motion is excessive
- Accepts 4-1/2-inch and 5-inch wheel diameters
- Kit includes XR POWERPACK batteries for immediate use
- Heavier build at 10.3 pounds compared to many competitors
- Longer overall length of 16.7 inches affects maneuverability
- Lower maximum speed of 9,000 RPM than some 6,000+ RPM rivals
- You need a cordless grinder with anti-rotation safety
- You want a kit that includes batteries
- You work with 5-inch wheels
- You prefer a lighter tool under 8 pounds
- You need a compact design for tight spaces
- You require speeds above 10,000 RPM
Verdict: DEWALT 20V MAX XR Brushless Angle Grinder Kit fits professionals who prioritize safety and included batteries over minimal weight. It is ideal for users who need to switch between 4-1/2-inch and 5-inch discs.
CRAFTSMAN V20 4-1/2-Inch Angle Grinder Kit
Best for: DIYers needing a complete, durable angle grinder kit
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2 inch
- Maximum Speed
- 8,500 RPM
- Configuration
- Tool Kit
- Included Tools
- Grinder
- Power Source
- Cordless
This CRAFTSMAN V20 angle grinder delivers 8,500 RPM for aggressive cutting and grinding tasks. The kit includes the tool, a battery, and a charger. It features a cast metal gear housing to dissipate heat during extended use. You get a 3-position handle and a tool-free guard for flexibility. It is a solid choice for DIYers who need a complete, ready-to-use setup.
- 8,500 RPM maximum speed for aggressive applications
- Cast metal gear housing dissipates heat
- Tool-free guard position adjustment
- 3-position handle for control
- Kit includes battery and charger
- 8,500 RPM is lower than many brushless competitors on this list
- 14.5 inches length is bulkier than compact brushless models
- Single speed operation limits versatility for delicate tasks
- You want a complete kit with battery and charger included
- You need a durable metal gear housing for heat dissipation
- You prefer a tool-free guard adjustment system
- You require variable speed control for precision work
- You need a brushless motor for higher efficiency and speed
- You prioritize a compact and lightweight tool for overhead use
Verdict: CRAFTSMAN V20 4-1/2 Inch Angle Grinder Kit is a practical choice for users who want a complete setup with included battery and charger. It suits those who prioritize durability and heat management over maximum speed and compact size.
Milwaukee M18 Fuel 4-1/2-Inch / 5-Inch Angle Grinder
Best for: Users needing 4-1/2-inch and 5-inch wheel versatility
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2" / 5"
- Dimensions
- 13.2 × 2.76 × 4.37 inches
This Milwaukee M18 Fuel angle grinder accepts both 4-1/2-inch and 5-inch wheels. It features a 1/2-inch chuck for secure disc attachment. The tool measures 13.2 inches in length, 4.37 inches in height, and 2.76 inches in width. Its compact red body fits comfortably in your hand. You will appreciate the variable speed control for different materials. It is a solid choice for users who need flexibility in wheel size.
- Accepts 4-1/2-inch and 5-inch wheels
- 1/2-inch chuck size for secure grip
- Compact dimensions of 13.2 x 4.37 x 2.76 inches
- Variable speed settings for material control
- Limited to 4-1/2-inch and 5-inch wheel diameters
- Fixed 1/2-inch chuck size restricts other disc types
- You need a grinder that handles both 4-1/2-inch and 5-inch wheels
- You prefer a compact tool that fits in tight spaces
- You require a 1/2-inch chuck for standard abrasive discs
- You need to cut larger than 5-inch wheels
- You require a different chuck size for specialized tools
- You prefer a corded tool for unlimited runtime
Verdict: Milwaukee M18 Fuel 4-1/2/5 Inch Grinder is ideal for users who need versatility in wheel sizes without sacrificing compactness. It suits those who frequently switch between 4-1/2-inch and 5-inch discs for various cutting and grinding tasks.
Makita 18V LXT Brushless 4-1/2 / 5-Inch Grinder
Best for: Makita 18V users seeking safety features
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4-1/2"/5"
- Voltage
- 18V
- Motor Type
- BL Brushless
- Braking System
- Electric brake
- Included Tools
- Grinder
This Makita XAG09Z is an 18V cordless angle grinder with a 4-1/2-inch or 5-inch wheel capacity. It uses a brushless motor for efficient power delivery and includes an electric brake that stops the wheel in two seconds. The tool weighs 5.7 pounds and measures 13.3 inches long. It suits users who need reliable performance from the 18V LXT platform without the bulk of higher voltage systems.
- Brushless motor optimizes battery energy use for up to 50% longer run time
- Electric brake stops the grinding wheel in two seconds or less
- Active feedback-sensing technology turns the motor off if rotation is suddenly forced to stop
- Automatic speed change technology adjusts speed and torque during operation
- 18V voltage is lower than the 20V and 60V options on this list
- 5.7-pound weight is heavier than many lighter compact competitors
- Sold as a bare tool with no battery or charger included
- You already own Makita 18V LXT batteries and want a compatible grinder
- You prefer the safety of an electric brake and kickback control
- You need a versatile grinder for both 4-1/2-inch and 5-inch wheels
- You require the highest power output available from 20V or 60V systems
- You want a complete kit with batteries and charger included
- You need the lightest possible tool for overhead work
Verdict: Makita 18V Brushless Angle Grinder delivers solid performance for existing Makita users who value safety features and efficiency over raw voltage. It is a practical choice for those who already have the 18V battery ecosystem.
DEWALT 20V MAX 4-1/2-Inch Cordless Grinder Kit
Best for: users wanting a complete kit with slide-switch
- Chuck Size
- 1/2 Inch
- Wheel Diameter
- 4 1/2 Inch
- Voltage
- 20V MAX
- Maximum Speed
- 9,000 RPM
- Motor Type
- Brushless
- Switch Type
- Slide-Switch
This 4-1/2 inch angle grinder uses a brushless motor to deliver 9,000 RPM and 850 MWO. It features a slide-switch for one-handed operation and includes anti-rotation safety with a kickback brake and E-Clutch. The bare tool weighs 3.55 lbs to reduce fatigue. This kit includes a battery and charger, making it ready for immediate use on standard 1/2 inch abrasive wheels.
- Brushless motor delivers up to 9,000 RPM
- Slide-switch allows one-handed control
- Includes kickback brake and E-Clutch for safety
- Kit comes with battery and charger
- Bare tool weight is 3.55 lbs
- 9,000 RPM is lower than some competitors reaching 10,000+ RPM
- 3.55 lb bare tool weight is heavier than ultra-light alternatives
- You want a complete kit with battery and charger included
- You prefer a slide-switch for one-handed operation
- You need reliable anti-rotation safety features
- You require variable speed control for delicate tasks
- You need a tool-only purchase without battery
- You prioritize the lightest possible weight for overhead work
Verdict: DEWALT 20V MAX Slide-Switch Angle Grinder offers solid power and safety for users who value included accessories and one-handed control. It suits contractors who need a ready-to-use kit rather than a bare tool.
Specifications side by side
| Spec | DEWALT 60V MAX 4-1/2 to 6-Inch Angle Grinder | DEWALT 4-1/2 to 5-Inch Paddle Switch Angle Grinder | Makita 9564CV 4-1/2-Inch Corded Grinder | DEWALT 20V MAX XR Variable Speed Angle Grinder | DEWALT 20V MAX 4-1/2-Inch Grinder Kit | DEWALT ATOMIC 4-1/2-Inch Angle Grinder | DEWALT 20V 4-1/2-Inch Slide-Switch Grinder | Milwaukee M18 FUEL 4-1/2-6 in. Grinder | DEWALT XR 4-1/2 to 5-Inch Variable Speed Grinder | Milwaukee M18 Cordless 4-1/2-Inch Grinder Kit | DEWALT 20V MAX XR 4-1/2 – 5 in. Brushless Grinder Kit | CRAFTSMAN V20 4-1/2-Inch Angle Grinder Kit | Milwaukee M18 Fuel 4-1/2-Inch / 5-Inch Angle Grinder | Makita 18V LXT Brushless 4-1/2 / 5-Inch Grinder | DEWALT 20V MAX 4-1/2-Inch Cordless Grinder Kit |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wheel Diameter | 4-1/2-Inch to 6-Inch | 4-1/2-Inch to 5-Inch | 4-1/2-Inch | 4-1/2 in. – 5 in. | 4-1/2-Inch | 4-1/2 in. | 4-1/2-Inch | 4-1/2 in. – 6 in. | 4-1/2 in. – 5 in. | 4-1/2" | 4-1/2 in. – 5 in. | 4-1/2 inch | 4-1/2" / 5" | 4-1/2"/5" | 4 1/2 Inch |
| Voltage | 60V MAX* | 20V MAX* | – | 20V MAX | 20V MAX* | 20V MAX | 20V MAX* | – | 20V MAX | – | 20V MAX | – | – | 18V | 20V MAX |
| Maximum Speed | 9000 rpm | – | 10,500 RPM | 9,000 RPM | 8,000 rpm | – | – | – | 9,000 RPM | – | 9,000 RPM | 8,500 RPM | – | – | 9,000 RPM |
| Motor Type | – | – | – | Brushless | – | – | Brushless | – | Brushless | 4-pole | Brushless | – | – | BL Brushless | Brushless |
| Switch Type | – | Paddle Switch | – | Paddle switch | 2-finger trigger switch | – | Slide Switch | No-Lock Paddle Switch | Slide switch | Paddle switch | – | – | – | – | Slide-Switch |
| Braking System | Kickback Brake | Kickback Brake | – | – | – | Electronic brake | Kickback Brake | Braking | – | – | – | – | – | Electric brake | Kickback Brake |
| Configuration | Tool Only | Tool Only | – | Tool Only | Tool Kit | Tool Only | Tool Only | Tool Only | Tool Only | Kit | Kit | Tool Kit | – | – | Kit with Battery and Charger Included |
| Chuck Size | 1/2 Inch | 1/2 Inch | 1/2 Inch | 1/2 Inch | 1/2 Inch | 1/2 Inch | 1/2 Inch | 1/2 Inch | 1/2 Inch | 1/2 Inch | 1/2 Inch | 1/2 Inch | 1/2 Inch | 1/2 Inch | 1/2 Inch |
| Included Tools | Grinder | Grinder | Grinder | Grinder | Grinder | Grinder | Grinder | Grinder | Grinder | Grinder | Grinder | Grinder | – | Grinder | Grinder |
| Speed | – | – | Variable Speed | Variable Speed | – | – | – | – | Variable Speed | – | – | – | – | – | – |
| Power Source | – | – | Corded | Cordless | – | – | – | – | Cordless | Cordless | Cordless | Cordless | – | Cordless | Cordless |
| Set Type | Tool Only | Tool Only | Tool Only | Tool Only | – | Tool Only | Tool Only | Tool Only | Tool Only | – | – | – | – | Tool Only | – |
| Dimensions | 9.1 × 9.1 × 9.1 inches | 13.1 × 1 × 4.9 inches | 16 × 6 × 6 inches | 13.3 × 6.5 × 5.7 inches | 21.1 × 7.63 × 12.4 inches | 12 × 6.98 × 4.48 inches | 12.9 × 1 × 4.9 inches | 12.5 × 7.08 × 11.4 inches | 13.2 × 6.5 × 5.7 inches | – | 16.7 × 6.1 × 10 inches | 14.5 × 5.38 × 8.25 inches | 13.2 × 2.76 × 4.37 inches | 8.39 × 13.3 × 5.43 inches | – |
| Weight | 1 pounds | 1 pounds | 6 pounds | 4.74 pounds | 5.8 kilograms | 4.65 pounds | 3.75 pounds | 4.5 pounds | – | 15.9 ounces | 10.3 pounds | – | – | 5.7 pounds | – |
| Size | One Size | One Size | 0 | STANDARD | One Size | – | One Size | – | STANDARD | – | One Size | 4-1/2-in. | – | 5/8 in. | Large |
| Color | Multi | Multi | Teal | Black, Yellow | Metallic | Black and Yellow | Multi | Red,black,grey | Black, Yellow | Red,grey,black | Black | Grey,black,red | Red | Teal | Black/Yellow |
| Model | DCG418B | DCG416B | 9564CV | DCG410VSB | DCG412P2 | DCG402B | DCG405B | 2980-20 | DCG411VSB | 2680-21P | DCG410WW1 | CMCG400M1 | 2888-20 | XAG09Z | DCG407P1 |
For direct spec comparisons, you can evaluate the best angle grinders with 1 2 inch side by side.
Key Specs for Choosing 1/2 Inch Grinders
Match Voltage to Batteries
Most options use 20V batteries, but the top pick runs on 60V FLEXVOLT. You must choose the voltage that matches your existing tools. This ensures you can use the same batteries without buying new packs. If you already have a 20V MAX ecosystem, stick with that platform. For heavy cutting with larger wheels, the 60V model delivers superior power. Check the voltage rating before buying to avoid compatibility issues with your current inventory.
Check Wheel Diameter Support
Most grinders accept 4-1/2 inch wheels, but some support 5-inch or 6-inch discs. The DEWALT 60V MAX model handles 6-inch wheels for maximum cutting capacity. Other models like the DEWALT 20V MAX XR Variable Speed support both 4-1/2 and 5-inch discs. Choose based on the largest disc you plan to use. Larger wheels remove material faster but require more power. Verify the wheel diameter spec to ensure the tool fits your intended abrasive or cutting discs.
Select Switch Type for Safety
Switch styles affect control and safety. Paddle switches require constant pressure to run, reducing kickback risk. The DEWALT 20V MAX Paddle Switch and Milwaukee M18 FUEL models use this design. Slide switches offer one-handed control but may lack immediate shutoff. The DEWALT 20V Slide-Switch Grinder includes a kickback brake for added safety. Choose a paddle switch for heavy-duty tasks where safety is priority. Select a slide switch if you prefer traditional trigger-style operation for lighter work.
Consider Motor Type Efficiency
Brushless motors offer better efficiency and longer life than brushed versions. The DEWALT 20V MAX XR Variable Speed and Makita 18V LXT models feature brushless technology. These motors generate less heat and draw power more effectively. Corded options like the Makita 9564CV provide consistent power without battery constraints. Check the motor type to determine maintenance needs and runtime. Brushless models often justify their price through durability and performance in continuous use scenarios.
Evaluate Kit vs Bare Tool
Decide if you need a complete kit or just the bare tool. Kits include batteries and chargers, like the DEWALT 20V MAX Kit or Milwaukee M18 Cordless Kit. Bare tools are lighter and cheaper but require existing batteries. The DEWALT 60V MAX and DEWALT ATOMIC models are bare tools. Choose a kit if you lack batteries or need a ready-to-use setup. Select bare tools if you already own compatible batteries from the same brand ecosystem.
Review Weight and Dimensions
Weight affects fatigue during extended use. The DEWALT ATOMIC model weighs 4.65 pounds and is compact for tight spaces. Corded models like the Makita 9564CV weigh 6 pounds due to the motor and cord. Heavier kits with batteries, like the DEWALT XR Brushless Kit at 10.3 pounds, offer convenience but reduce maneuverability. Check the weight spec to match your physical comfort. Compact dimensions help in confined areas, while larger bodies may offer better heat dissipation.
Frequently asked questions
Can I use 5-inch discs on a 4-1/2 inch grinder?
Only if the tool is designed for dual wheel sizes. The DEWALT DCG410VSB and DCG411VSB models accept both 4-1/2-inch and 5-inch discs. This versatility allows you to switch between cutting and grinding tasks without changing tools. Standard 4-1/2-inch models only support smaller wheels.
Which angle grinder is best for tight spaces?
The DEWALT 20V MAX ATOMIC DCG402B is built for confined areas. It features a compact design with a length of 12 inches. This shorter profile helps you reach into narrow gaps where standard grinders cannot fit. It weighs 4.65 pounds for manageable handling.
Do I need a brushless motor for my angle grinder?
Brushless motors offer better efficiency and longer life. The DEWALT DCG410VSB and Makita XAG09Z both use brushless technology. These models provide consistent power without the friction of carbon brushes. You get more runtime from your batteries compared to brushed alternatives.
What is the difference between a paddle switch and a slide switch?
A paddle switch requires constant pressure to keep the tool running, which enhances safety. The DEWALT DCG416B and Milwaukee 2980-20 use this design. A slide switch stays in the on position, allowing one-handed operation. The DEWALT DCG405B features a slide switch for convenience.
Is a corded grinder better than a cordless one?
Corded models provide continuous power without battery concerns. The Makita 9564CV is a corded option ideal for stationary or heavy-duty tasks. It delivers consistent performance for stone grinding. Cordless tools offer portability but require battery management and recharging for extended use.
Which grinder supports the largest cutting wheel?
The DEWALT DCG418B supports 6-inch wheels, the largest in this list. It is powered by the 60V FLEXVOLT platform for superior cutting power. This capacity allows for deeper cuts and faster material removal. Other models are limited to 4-1/2-inch or 5-inch discs.
Do these kits include batteries and chargers?
Some models are sold as bare tools, while others include batteries. The DEWALT DCG412P2 and Milwaukee 2680-21P are kits with included batteries. The DEWALT DCG407P1 also provides a complete setup. Bare tools like the DCG418B require you to purchase batteries separately.
See also
Where to buy
at Amazon
Price taken from the listing when this page was written and it can change at any time. We may earn a commission if you buy through this link.
More Angle Grinders
See the section
Get our picks by email
New reviews and the prices we spotted, once a week.