Best 20V Rotary Hammers in 2026: 12 Picks Ranked by Specs
We compared 12 20V rotary hammers using only published specifications. Review weight, chuck compatibility, and impact energy to select the best tool for your drilling needs.
By GaugeKit Editorial Team 6 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 20V rotary hammers requires looking at specific performance metrics rather than general claims. We compared 12 models based strictly on the specifications published on their listings. The DEWALT 20V MAX SDS Cordless Rotary Hammer leads this list because it weighs only 6.4 pounds while delivering robust power for heavy-duty concrete drilling. This weight-to-power ratio helps reduce user fatigue during extended mounting tasks. You will find detailed breakdowns of motor types, chuck sizes, and overall dimensions for each tool below. Use this guide to decide which tool matches your specific drilling needs and battery ecosystem.
Match the chuck type to your bits
You must choose between standard 1/2-inch chucks and SDS-Plus systems. SDS-Plus tools like the DEWALT DCH273B deliver higher impact energy for concrete. Standard 1/2-inch models suit general drilling. Select the chuck that matches your bit shank. This decision determines whether you can drill masonry effectively or only drill wood and metal.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | DEWALT 20V MAX SDS Cordless Rotary Hammer Best overall | Heavy-duty concrete drilling with vibration control | |
| 2 | DEWALT 20V XR Brushless Hammer Drill Best drill driver | general drilling and light masonry tasks | |
| 3 | DEWALT DCD1007 20V XR Hammer Drill Also great | High torque drilling in wood, metal, and concrete | |
| 4 | DEWALT 20V MAX SDS Plus Compact Rotary Hammer Best budget | light concrete mounting and vibration control | |
| 5 | DEWALT 20V MAX 1-Inch Cordless Rotary Hammer Best 1 inch | Lightweight 1-inch concrete drilling tasks | |
| 6 | DEWALT 20V Max 1-1/8-Inch SDS Plus Rotary Hammer Best premium | heavy masonry drilling with existing batteries | |
| 7 | DEWALT 20V MAX XR Brushless Combo Kit Also great | Users wanting a complete 20V hammer drill kit | |
| 8 | DCK 20V Cordless SDS-Plus Rotary Hammer Best 5 inch | indoor drilling with dust control | |
| 9 | DEWALT 20V MAX FLEXVOLT Hammer Drill Also great | Users with existing DEWALT battery systems | |
| 10 | DEWALT 20V MAX Brushless Hammer Drill Also great | General drilling and light masonry tasks | |
| 11 | DEWALT 20V XR 1/2 in Hammer Drill Also great | Users with existing 20V batteries | |
| 12 | DEWALT 20V Max Brushless Rotary Hammer Best 5.0ah | Users prioritizing runtime and vibration control |
The best fit for you
- You need heavy-duty concrete drilling with vibration control – DEWALT 20V MAX SDS Cordless Rotary Hammer – This model weighs 6.4 pounds and features specific application modes for better control.
- You want the most compact and lightweight rotary hammer – DEWALT 20V MAX SDS Plus Compact Rotary Hammer – It weighs 4.59 pounds and measures 11.4 inches long for tight spaces.
- You need a complete kit with a large battery – DEWALT DCD1007 20V XR Hammer Drill – This kit includes a brushless motor and a large battery for high torque drilling.
- You prioritize battery runtime and vibration control – DEWALT 20V Max Brushless Rotary Hammer – It comes with a 5.0Ah battery and a brushless motor for extended use.
DEWALT 20V MAX SDS Cordless Rotary Hammer
Best for: Heavy-duty concrete drilling with vibration control
- Voltage
- 20V
- Impact Energy
- 2.1 Joules
- Chuck Type
- SDS
- Operating Modes
- Drill, Hammer Drill, or Chip
- Motor Type
- Brushless
- Power Source
- Cordless
The DEWALT 20V MAX SDS Rotary Hammer Drill (DCH273B) is a bare-tool unit powered by a brushless motor. It delivers 2.1 Joules of impact energy for concrete drilling. The tool weighs 6.4 pounds and measures 13 inches long. It features SHOCKS ACTIVE VIBRATION CONTROL to reduce handle vibration. You can switch between drill, hammer drill, and chip modes using a rotating dial.
- 2.1 Joules of impact energy for concrete drilling
- Brushless motor for efficient performance
- SHOCKS ACTIVE VIBRATION CONTROL reduces user vibration
- Three application modes: Drill, Hammer Drill, Chip
- 6.4 pound weight is heavier than typical hammer drills
- 13 inch length makes it bulkier for tight spaces
- You need a dedicated tool for seismic or safety attachment mounting
- You want vibration reduction for extended rod hanging tasks
- You require OSHA Table 1 compliance with an extractor
- You need a complete kit with batteries and charger
- You prefer a lighter tool under 5 pounds
- You only need standard drilling in wood or metal
Verdict: DEWALT 20V SDS Rotary Hammer suits professionals mounting cable trays or strut who prioritize vibration control and specific application modes over portability.
DEWALT 20V XR Brushless Hammer Drill
Best for: general drilling and light masonry tasks
- Voltage
- 20V
- Motor Type
- Brushless
- Chuck Size
- 1/2 Inch
- Included Tools
- Drill Driver, Hammer Drill
- Power Source
- Cordless
- Configuration
- Bare Tool
This is a 20V cordless hammer drill driver with a brushless motor. It features a 1/2-inch metal chuck and three operating modes. The tool weighs 4 pounds and measures 10 inches long. It is designed for users who need a heavy-duty drill driver for masonry and general drilling tasks. The brushless motor offers extended runtime compared to older brushed models.
- Brushless motor for up to 75% more runtime
- 1/2-inch nitro-carburized metal ratcheting chuck
- 3-mode LED with spotlight function
- Three operating modes for versatility
- 1/2-inch chuck limits SDS bit compatibility
- 4-pound weight adds fatigue during overhead use
- You need a heavy-duty hammer drill for masonry
- You prefer a 1/2-inch chuck for larger bits
- You want extended runtime from a brushless motor
- You require SDS Plus compatibility for rotary hammering
- You need a lighter tool for extended overhead work
- You want a kit with batteries and charger included
Verdict: DEWALT 20V XR Brushless 1/2 Hammer Drill suits users who prioritize chuck size and runtime over rotary hammer functionality. It is a solid choice for general drilling and light masonry tasks where SDS bits are not required.
DEWALT DCD1007 20V XR Hammer Drill
Best for: High torque drilling in wood, metal, and concrete
- Voltage
- 20V
- Chuck Type
- 1/2 in. ratcheting metal
- Motor Type
- Brushless
- Chuck Size
- 1/2 Inch
- Included Tools
- Hammer Drill
- Power Source
- Cordless
This DEWALT 20V MAX XR hammer drill offers 2,100 in-lbs of max torque for drilling large holes in wood, metal, and concrete. It features a brushless motor and a 1/2 inch ratcheting metal chuck. The kit includes an 8Ah battery and charger. You get a compact design at 15.5 inches long, making it suitable for tight spaces. The three-speed transmission helps optimize performance for various materials.
- 2,100 in-lbs max torque for large diameter holes
- Brushless motor for extended runtime and durability
- 1/2 inch ratcheting nitro-carburized metal chuck
- Includes 8Ah battery and charger in the kit
- Anti-rotation system for better control
- 15.5 inches length is bulkier than compact rotary hammers
- 1/2 inch chuck is larger than standard 3/8 inch hammer drills
- Single battery capacity may require swaps for heavy use
- You need high torque for large diameter holes in concrete
- You want a complete kit with an 8Ah battery
- You prefer a brushless motor for efficiency
- You need a dedicated SDS rotary hammer for masonry
- You require a compact tool under 14 inches
- You only need light duty drilling in wood
Verdict: DEWALT DCD1007 20V 1/2 Hammer Drill fits users who need high torque and a complete kit with a large battery. It is not a dedicated rotary hammer, so skip it if you drill masonry daily.
DEWALT 20V MAX SDS Plus Compact Rotary Hammer
Best for: light concrete mounting and vibration control
- Voltage
- 20V
- Impact Energy
- 1.4 joules
- Chuck Type
- SDS Plus
- Drilling Capacity
- 5/8 in.
- Operating Modes
- drill and hammer drill
- Motor Type
- Brushless
This DEWALT 20V MAX rotary hammer features a brushless motor and SDS Plus chuck. It delivers 1.4 joules of impact energy for drilling up to 5/8 inch in concrete. The tool weighs 4.59 pounds and includes SHOCKS vibration control. It is designed for rod hanging and strut mounting. You get efficient runtime from the German-engineered mechanism. This model is sold as a bare tool.
- 1.4 joules of impact energy
- Brushless motor for efficiency
- SHOCKS vibration control system
- SDS Plus chuck compatibility
- Lower impact energy of 1.4 joules compared to higher-end rotary hammers
- Heavier weight at 4.59 pounds than standard hammer drills
- Limited to drill and hammer drill modes only
- You need vibration reduction for extended overhead work
- You are mounting struts or brackets in concrete
- You already own DEWALT 20V MAX batteries
- You require three-mode operation for chiseling
- You need to drill larger than 5/8 inch holes
- You want a tool that includes a battery
Verdict: DEWALT 20V SDS Plus Rotary Hammer suits contractors who prioritize vibration control and efficient runtime for light concrete work. It fits users who already have 20V batteries and need a dedicated SDS Plus tool for mounting tasks.
DEWALT 20V MAX 1-Inch Cordless Rotary Hammer
Best for: Lightweight 1-inch concrete drilling tasks
- Voltage
- 20V
- Impact Energy
- 2.6 J
- Chuck Type
- SDS Plus
- Drilling Capacity
- 1"
- Operating Modes
- Drill, hammer drill, chip
- Motor Type
- Brushless
This bare-tool rotary hammer delivers 2.6 joules of impact energy for fast drilling in concrete. It features a brushless motor and durable German-engineered mechanism for efficient performance. The tool offers three application modes: drill, hammer drill, and chip. Weighing 5 pounds, it is lightweight for overhead work. It includes a side handle and depth rod. This model suits users needing reliable 1-inch SDS Plus capacity.
- 2.6 joules of impact energy for concrete drilling
- Brushless motor for efficient runtime
- Three application modes: drill, hammer drill, chip
- Lightweight 5-pound design for overhead tasks
- Lower impact energy of 2.6 joules compared to competitors
- Heavier at 5 pounds than some lighter alternatives
- Limited to 1-inch drilling capacity
- You need a dedicated 1-inch SDS Plus rotary hammer
- You value lightweight handling for structural connections
- You already own 20V MAX batteries
- You require drilling larger than 1 inch
- You need a kit with batteries and charger included
- You prioritize maximum impact energy over weight
Verdict: DEWALT 20V SDS Plus 1-Inch Rotary Hammer fits users who need a lightweight, dedicated tool for 1-inch concrete work. It is ideal for structural connections where its 2.6 joules of energy and brushless motor provide reliable performance.
DEWALT 20V Max 1-1/8-Inch SDS Plus Rotary Hammer
Best for: heavy masonry drilling with existing batteries
- Voltage
- 20V
- Impact Energy
- 3.5 J
- Chuck Type
- SDS Plus
- Drilling Capacity
- 1-1/8"
- Motor Type
- Brushless
- Included Tools
- Hammer Drill
This bare-tool rotary hammer delivers 3.5 Joules of impact energy through a brushless motor and SDS Plus chuck. It drills up to 1-1/8 inches in masonry. The unit weighs 8.71 pounds and measures 15.3 inches long. Active Vibration Control reduces user fatigue. It suits professionals needing corded power in a compact, durable package without a battery.
- 3.5 Joules of impact energy
- Brushless motor for durability
- Active Vibration Control reduces handle vibration
- E-Clutch protects against bind-up
- Heavier at 8.71 pounds than lighter competitors
- Smaller 1-1/8 inch drilling capacity
- Sold as a bare tool without battery
- You need high impact energy for dense masonry
- You already own DEWALT 20V batteries
- You want vibration reduction for long jobs
- You require drilling larger than 1-1/8 inches
- You need a complete kit with battery included
- You prefer a lighter tool under 8 pounds
Verdict: DEWALT 20V Brushless SDS Plus Rotary Hammer is a heavy-duty option for users who prioritize impact force and vibration control over portability and battery inclusion.
DEWALT 20V MAX XR Brushless Combo Kit
Best for: Users wanting a complete 20V hammer drill kit
- Voltage
- 20V
- Motor Type
- Brushless
- Included Tools
- Hammer Drill
- Configuration
- Kit
- Dimensions
- 17.3 × 10 × 5.59 inches
- Weight
- 12.6 pounds
This DEWALT combo kit includes a brushless hammer drill powered by 20V MAX batteries. The motor delivers 3,400 RPM and 4.5 cm lbs of torque. You get up to 275 holes per charge. The kit weighs 12.6 pounds and measures 17.3 inches long. It suits users who need a reliable 20V hammer drill with included batteries for general drilling tasks.
- Brushless motor for efficient power delivery
- High speed of 3,400 RPM
- Includes XR POWERPACK batteries
- Rated for up to 275 holes per charge
- Heavier build at 12.6 pounds
- Longer length of 17.3 inches
- Lower torque of 4.5 cm lbs
- You want a complete kit with batteries
- You need a brushless 20V hammer drill
- You prioritize runtime over compact size
- You need a tool-only purchase
- You require high torque for heavy masonry
- You prefer a lighter, more compact tool
Verdict: DEWALT 20V MAX XR Hammer Drill Kit fits users who want a ready-to-use 20V hammer drill with included batteries and do not mind a heavier, longer tool.
DCK 20V Cordless SDS-Plus Rotary Hammer
Best for: indoor drilling with dust control
- Voltage
- 20V
- Impact Energy
- 2.8J
- Chuck Type
- SDS Plus
- Operating Modes
- drill, rotary hammer, demolition
- Motor Type
- Brushless
- Impact Rate
- 5100 BPM
This DCK 20V rotary hammer features a brushless motor and 2.8J impact energy. It offers three modes: drill, rotary hammer, and demolition. The tool includes a 15 in³ dust collection box and a 5-inch stroke. It weighs 3 inches wide, 6 inches high, and 10 inches long. You get a 6.0Ah battery and fast charger. This setup suits jobs requiring dust control and moderate power.
- 2.8J impact energy for concrete and stone
- Integrated 15 in³ dust collection box
- 3-in-1 modes: drill, hammer, demolition
- Brushless motor for consistent power
- Includes 6.0Ah battery and 1.5-hour charger
- 2.8J impact energy is lower than many competitors
- 10-inch length adds bulk compared to compact tools
- 5100 BPM impact rate is modest for heavy demolition
- You need dust extraction for indoor concrete work
- You require a 5-inch stroke for deeper holes
- You want a tool with a 6.0Ah battery included
- You need maximum impact energy for heavy demolition
- You prefer a lighter, more compact tool
- You already have a compatible dust extraction system
Verdict: DCK 20V Brushless Rotary Hammer fits users who prioritize clean workspaces and moderate power. It is ideal for indoor drilling where dust control matters more than raw impact force.
DEWALT 20V MAX FLEXVOLT Hammer Drill
Best for: Users with existing DEWALT battery systems
- Voltage
- 20V
- Chuck Size
- 1/2 Inch
- Included Tools
- Hammer Drill
- Power Source
- Cordless
- Configuration
- Bare Tool
- Set Type
- Tool Only
This is a cordless 20V MAX* hammer drill from DEWALT. It features a 1/2-inch chuck and three speed settings. The tool weighs 3.54 pounds and measures 12.1 inches in length. It is sold as a bare tool without a battery. This model suits users who need a versatile drill for various materials and appreciate the flexibility of the FLEXVOLT system.
- Three speed settings for different material requirements
- 1/2-inch chuck capacity for larger bits
- Cordless design with 20V MAX* power
- Compact length of 12.1 inches
- Heavier at 3.54 pounds compared to many competitors
- Sold as a bare tool without included battery
- Lower weight capacity than dedicated rotary hammers
- You already own DEWALT 20V batteries
- You need a drill with three speed options
- You prefer a 1/2-inch chuck size
- You need a dedicated SDS rotary hammer
- You want a complete kit with battery included
- You require a lighter tool under 3 pounds
Verdict: DEWALT 20V FLEXVOLT Hammer Drill fits users who already own DEWALT batteries and need a versatile 1/2-inch drill. It is a solid choice for general drilling tasks where weight is not the primary concern.
DEWALT 20V MAX Brushless Hammer Drill
Best for: General drilling and light masonry tasks
- Voltage
- 20V
- Motor Type
- brushless
- Included Tools
- Hammer Drill
- Power Source
- Cordless
- Configuration
- Bare Tool
- Set Type
- Tool Only
This is a cordless 20V MAX hammer drill with a brushless motor. It features a 1/2-inch metal chuck and three speed settings. The tool weighs 4.81 pounds and measures 12 inches long. It includes a 3-mode LED light. This model suits users needing a durable, high-efficiency drill for masonry and general tasks.
- Brushless motor delivers up to 57% more run time
- 3-speed transmission optimizes application speeds
- Heavy-duty 1/2-inch ratcheting metal chuck
- 3-mode LED with 20-minute shutoff
- Weighs 4.81 pounds, which is heavier than some lighter rotary hammers
- Single 1/2-inch chuck limits bit size compared to SDS Plus models
- 3-speed setting offers fewer options than 4-speed competitors
- You need a durable hammer drill for masonry work
- You prefer a tool with a metal chuck for bit grip
- You want extended run time from a brushless motor
- You require SDS Plus compatibility for masonry drilling
- You need a lighter tool for overhead work
- You prefer more than three speed settings
Verdict: DEWALT 20V MAX Brushless Hammer Drill fits users who prioritize chuck durability and motor efficiency over specialized rotary hammer features. It is a solid choice for general drilling and light masonry tasks where SDS compatibility is not required.
DEWALT 20V XR 1/2 in Hammer Drill
Best for: Users with existing 20V batteries
- Voltage
- 20V
- Motor Type
- Brushless
- Chuck Size
- 1/2 Inch
- Included Tools
- Hammer Drill
- Power Source
- Cordless
- Configuration
- Bare Tool
This DEWALT DCD996BR is a 20V MAX XR cordless hammer drill with a brushless motor. It features a 1/2 inch chuck and three speed settings. The bare tool weighs 4.4 pounds and measures 10 inches long. It includes a 3-mode LED light. This model suits users needing high efficiency and runtime for general drilling tasks.
- Brushless motor for up to 57% more runtime
- Three speed settings for varied material control
- 1/2 inch chuck for versatile bit compatibility
- 3-mode LED light for dark spaces
- 4.4 pound weight is heavier than some competitors
- Sold as a bare tool without battery
- Single chuck size limits quick bit changes
- You already own DEWALT 20V batteries
- You need a reliable brushless motor
- You prefer a 1/2 inch chuck
- You want a complete kit with battery
- You need an SDS rotary hammer
- You prefer a lighter tool under 4 pounds
Verdict: DEWALT 20V XR 1/2 Hammer Drill fits users who already have 20V batteries and need a durable brushless motor for general drilling. It is not for those seeking a rotary hammer or a complete kit.
DEWALT 20V Max Brushless Rotary Hammer
Best for: Users prioritizing runtime and vibration control
- Voltage
- 20V
- Impact Energy
- 2.1 Joules
- Chuck Type
- SDS
- Operating Modes
- Drill, Hammer Drill, or Chip
- Motor Type
- Brushless
- Battery Capacity
- 5.0Ah
The DEWALT DCH273P2 is a cordless 20V rotary hammer with a brushless motor. It delivers 2.1 Joules of impact energy for concrete drilling. The tool includes two 5.0Ah batteries. It features Active Vibration Control to reduce handle shake. You can switch between drill, hammer drill, and chip modes. This setup suits users needing runtime and comfort for mounting tasks.
- Includes two 5.0Ah batteries for extended runtime
- Brushless motor for efficient performance
- 2.1 Joules of impact energy
- SHOCKS Active Vibration Control reduces handle vibration
- Three application modes: Drill, Hammer Drill, and Chip
- 2.1 Joules impact energy is lower than many competitors
- 11.7 pounds weight is heavier than tool-only versions
- SDS chuck limits bit compatibility compared to 1/2-inch chucks
- You need longer runtime with the included 5.0Ah batteries
- You want reduced vibration for comfort during extended use
- You require three specific drilling modes for various tasks
- You prefer a lighter tool-only setup under 10 pounds
- You need higher impact energy for heavy-duty concrete work
- You require a standard 1/2-inch chuck for general drilling
Verdict: DEWALT DCH273P2 20V Brushless Rotary Hammer fits users who prioritize battery runtime and vibration control over maximum raw power. It is a solid choice for mounting and light masonry work.
Specifications side by side
| Spec | DEWALT 20V MAX SDS Cordless Rotary Hammer | DEWALT 20V XR Brushless Hammer Drill | DEWALT DCD1007 20V XR Hammer Drill | DEWALT 20V MAX SDS Plus Compact Rotary Hammer | DEWALT 20V MAX 1-Inch Cordless Rotary Hammer | DEWALT 20V Max 1-1/8-Inch SDS Plus Rotary Hammer | DEWALT 20V MAX XR Brushless Combo Kit | DCK 20V Cordless SDS-Plus Rotary Hammer | DEWALT 20V MAX FLEXVOLT Hammer Drill | DEWALT 20V MAX Brushless Hammer Drill | DEWALT 20V XR 1/2 in Hammer Drill | DEWALT 20V Max Brushless Rotary Hammer |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Impact Energy | 2.1 Joules | – | – | 1.4 joules | 2.6 J | 3.5 J | – | 2.8J | – | – | – | 2.1 Joules |
| Chuck Type | SDS | – | 1/2 in. ratcheting metal | SDS Plus | SDS Plus | SDS Plus | – | SDS Plus | – | – | – | SDS |
| Drilling Capacity | – | – | – | 5/8 in. | 1" | 1-1/8" | – | – | – | – | – | – |
| Operating Modes | Drill, Hammer Drill, or Chip | – | – | drill and hammer drill | Drill, hammer drill, chip | – | – | drill, rotary hammer, demolition | – | – | – | Drill, Hammer Drill, or Chip |
| Voltage | 20V MAX | 20V | 20V MAX | 20V MAX | 20V | 20V | 20V MAX | 20V | 20V MAX* | 20V MAX | 20V | 20V Max |
| Motor Type | Brushless | Brushless | Brushless | Brushless | Brushless | Brushless | Brushless | Brushless | – | brushless | Brushless | Brushless |
| Impact Rate | – | – | – | – | – | – | – | 5100 BPM | – | – | – | – |
| Chuck Size | – | 1/2 Inch | 1/2 Inch | – | 1 Inch | – | – | – | 1/2 Inch | – | 1/2 Inch | – |
| Battery Capacity | – | – | – | – | – | – | – | – | – | – | – | 5.0Ah |
| Included Tools | Hammer Drill | Drill Driver, Hammer Drill | Hammer Drill | Hammer Drill | Hammer Drill | Hammer Drill | Hammer Drill | Hammer Drill | Hammer Drill | Hammer Drill | Hammer Drill | – |
| Power Source | Cordless | Cordless | Cordless | Cordless | Cordless | – | – | Cordless | Cordless | Cordless | Cordless | – |
| Form Factor | – | – | – | Compact | – | – | – | – | – | – | – | – |
| Configuration | Bare Tool | Bare Tool | Kit | Bare Tool | Bare Tool | Bare Tool | Kit | Bare Tool | Bare Tool | Bare Tool | Bare Tool | – |
| Wheel Diameter | – | – | – | – | – | – | – | 5 Inch | – | – | – | – |
| Set Type | Tool Only | Tool Only | – | Tool Only | Tool Only | Tool Only | – | Tool Only | Tool Only | Tool Only | Tool Only | – |
| Dimensions | 13 × 4.2 × 8.6 inches | 4 × 10 × 8 inches | 15.5 × 11.6 × 12 inches | 11.4 × 8.54 × 10.7 inches | 16.2 × 9 × 4 inches | 15.3 × 4 × 10.6 inches | 17.3 × 10 × 5.59 inches | 10 × 3 × 6 inches | 12.1 × 8.78 × 4.02 inches | 12 × 8.7 × 4.06 inches | 10 × 8 × 3 inches | 19.3 × 11.9 × 4.72 inches |
| Weight | 6.4 pounds | 4 pounds | – | 4.59 pounds | 5 pounds | 8.71 pounds | 12.6 pounds | – | 3.54 pounds | 4.81 pounds | 4.4 pounds | 11.7 pounds |
| Size | One Size | One Size | One Size | One Size | One Size | One Size | – | Tool Only | One Size | One Size | – | One Size |
| Color | Multi | Multi | Yellow | Black, Yellow | Yeif | Multi | – | – | Multi | Yellow | Black Yellow | Multi |
| Model | DCH273B | DCD996B | DCD1007WW1 | DCH172B | DCH133B | DCH293B | DCK2101QQ2 | KRHDE20V-26-01 | DCD999B | DCD998B | DCD996BR | DCH273P2 |
How to choose the right 20V rotary hammer
Check the chuck type
You must match the chuck to your bit shank. SDS-Plus chucks, found on the DEWALT DCH273B, allow bits to slide in and lock quickly. This system transfers more impact energy into concrete than standard chucks. Standard 1/2-inch chucks, like those on the DEWALT DCD996B, hold bits with a key or keyless mechanism. They are better for wood and metal but offer less hammering power. Select SDS-Plus for masonry. Choose 1/2-inch for general drilling tasks where concrete work is rare or light.
Review the weight spec
Weight affects your comfort during long overhead or repetitive tasks. The DEWALT DCH172B weighs only 4.59 pounds, making it easier to manage in tight spaces or for extended periods. Heavier tools like the DEWALT DCH293B at 8.71 pounds provide more stability and often higher impact force. A lighter tool reduces arm fatigue. A heavier tool may drive bits deeper into hard concrete. Decide if you prioritize portability for overhead work or raw power for structural drilling. Check the poundage in the specs before buying.
Compare motor type
Motor type impacts runtime and durability. Brushless motors, seen in the DEWALT DCH172B and DCD996B, lack carbon brushes. This design reduces friction and heat, extending the tool's life and improving efficiency. Brushed motors are less common in modern 20V tools but may appear in older kits. Brushless models often run cooler and draw less current for the same output. If you drill concrete daily, a brushless motor preserves battery charge longer. Verify the motor type in the attributes section to ensure you get the most efficient performance.
Assess battery capacity
Battery capacity determines how long you can work before recharging. The DEWALT DCH273P2 kit includes a 5.0Ah battery, which holds more energy than standard 2.0Ah cells. Higher amp-hour ratings provide longer runtime for demanding concrete drilling. Bare tool kits require you to supply your own batteries. If you already own 20V batteries, a bare tool is cost-effective. If you need a complete setup, look for kits with larger capacity cells. Check the included tools section to see if a battery is provided and what its capacity is.
Evaluate the kit size
Kit size dictates what you receive in the box. The DEWALT DCD1007WW1 kit includes a hammer drill, batteries, and a case. Bare tools, like the DCH273B, include only the tool body. Kits are ideal for new users who need everything to start working immediately. Bare tools suit professionals who already own compatible batteries and chargers. Consider the total weight of the kit, as the DEWALT DCK2101QQ2 weighs 12.6 pounds. This includes the batteries and case. Choose a kit for convenience or a bare tool for flexibility and lower initial weight.
Frequently asked questions
Which 20V rotary hammer is the lightest?
The DEWALT DCK 20V Cordless SDS-Plus Rotary Hammer is the lightest option listed. It weighs 4.59 pounds, making it ideal for overhead work or tight spaces. This compact design helps reduce user fatigue during extended drilling sessions. Other models like the DCD999B weigh 3.54 pounds but are not dedicated rotary hammers.
What is the difference between SDS-Plus and standard chucks?
SDS-Plus chucks allow bits to slide in and lock quickly, transferring more impact energy into concrete. Standard 1/2-inch chucks, found on models like the DCD996B, suit general drilling and light masonry. Choose SDS-Plus for heavy-duty concrete work. Select standard chucks if you do not require specialized rotary hammer functionality.
Does the top-rated model come with a battery?
No, the top-rated DEWALT DCH273B is sold as a bare tool. It does not include a battery or charger. You must purchase a compatible 20V battery separately. If you need a complete kit with batteries, consider the DCD1007WW1 or DCK2101QQ2, which are sold as kits.
Which model is best for heavy masonry drilling?
The DEWALT DCH293B is best for heavy masonry drilling. It weighs 8.71 pounds and features a brushless motor for sustained power. This model prioritizes impact force and vibration control over portability. It is a solid choice for users who already have 20V batteries and need a dedicated tool for tough concrete.
Are brushless motors better than brushed ones?
Yes, brushless motors offer better efficiency and longer runtime. Most models on this list, including the DCH172B and DCH293B, feature brushless motors. They provide consistent power and require less maintenance. The DCD1007WW1 also uses a brushless motor for high torque drilling in wood, metal, and concrete.
What is the largest drill capacity listed?
The DEWALT DCH293B supports 1-1/8-inch drilling capacity. It is designed for heavy-duty applications where larger holes are necessary. Other models like the DCH133B support 1-inch drilling. The DCD999B offers a 1/2-inch chuck for smaller bits. Choose the capacity that matches your specific bit requirements.
Is there a rotary hammer with dust control?
The DCK KRHDE20V-26-01 is designed for indoor drilling with dust control. It prioritizes clean workspaces over raw impact force. This model is ideal for users who need to maintain a clean environment while drilling. It features a brushless motor and SDS-Plus chuck for reliable performance.
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 Rotary Hammers
See the section
Get our picks by email
New reviews and the prices we spotted, once a week.