FLEX vs CRAFTSMAN Impact Wrenches: Which Brand Fits You?
Compare FLEX and CRAFTSMAN cordless tools by published specs. Review torque, drive size, and motor type for 2 models to find the best fit for your tasks.
By GaugeKit Editorial Team 6 min read
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This FLEX vs CRAFTSMAN impact wrench comparison focuses on two distinct cordless tools. Both models feature brushless motors for efficiency. The primary difference lies in their intended use and power output. The FLEX unit is a 24V impact driver with 2,500 in-lbs of torque. The CRAFTSMAN is a V20 impact wrench delivering up to 1,000 ft-lbs of breakaway torque. You must choose between precision fastening and high-torque bolting.
Voltage
24V
V20
Drive Size
1/4-Inch Hex
1/2 Inch
Max Torque
2,500 in-lbs
1,000 ft-lbs breakaway
Kit Configuration
Tool Only
Battery and Charger Included
Battery Capacity
Not listed
4Ah
Choose the first if
- You need precise control for driving screws and small fasteners
- You already own a full system of FLEX 24V batteries
- You prefer a lighter, more compact tool for tight spaces
Choose the second if
- You require high torque for lug nuts or structural bolts
- You want a complete kit with battery and charger included
- You need a 1/2-inch drive for standard sockets and accessories
Verdict
The FLEX tool suits users who prioritize precision and cross-compatibility within the 24V ecosystem. The CRAFTSMAN model is better for heavy-duty applications requiring significant breakaway torque. Choose based on whether your work involves fine fastening or high-resistance bolting.
FLEX vs CRAFTSMAN Impact Comparison
Drive size and application
Edge: Tie
The FLEX tool is a 1/4-inch hex impact driver designed for quick bit changes and screw driving. It features a quick eject collet for one-handed operation. The CRAFTSMAN unit is a 1/2-inch impact wrench with a hog rig anvil. This larger drive size provides the leverage needed for high-torque fastening tasks like lug nuts or structural bolts. You must choose the drive size that matches your sockets and bits. The FLEX suits detailed fastening, while the CRAFTSMAN handles heavy-duty loosening and tightening.
Torque output
Edge: CRAFTSMAN V20 RP Brushless Impact Wrench Kit
Torque figures differ significantly due to the tool types. The FLEX impact driver delivers 2,500 in-lbs of torque. This is substantial for a driver but measured in inch-pounds. The CRAFTSMAN impact wrench offers up to 1,000 ft-lbs of breakaway torque and 700 ft-lbs of max tightening torque. Converting the FLEX torque to foot-pounds yields roughly 208 ft-lbs. The CRAFTSMAN provides far more rotational force for stubborn bolts. If you need raw power for automotive or construction work, the CRAFTSMAN is the clear choice.
Voltage and platform
Edge: Tie
The FLEX tool operates on a 24V Stacked Lithium platform. It claims 200% more power than standard 18V tools in its marketing. The CRAFTSMAN runs on the V20 platform, which is effectively a 20-volt system. Both are cordless and brushless. The FLEX system emphasizes cross-compatibility with all 24V batteries and chargers. The CRAFTSMAN is VERSATRACK compatible, allowing battery sharing across its V20 line. You should stick with the brand ecosystem you already own. The voltage difference is minor, but the platform lock-in is a key decision factor.
Included accessories
Edge: CRAFTSMAN V20 RP Brushless Impact Wrench Kit
The FLEX product is sold as a tool-only configuration. You must purchase the battery and charger separately. The CRAFTSMAN model is a complete kit that includes a 4.0Ah battery and a charger. This makes the CRAFTSMAN ready to use immediately out of the box. If you already have compatible batteries, the FLEX bare tool might be more cost-effective for you. However, for a new user, the CRAFTSMAN provides everything needed to start working. The inclusion of the power source is a significant practical advantage for the CRAFTSMAN.
Weight and size
Edge: FLEX 24V Brushless 1/4-Inch Impact Driver
The FLEX impact driver is compact and lightweight. It weighs 3 pounds and measures 10 inches in height and 4.7 inches in length. The CRAFTSMAN impact wrench is larger and heavier. It measures 12.2 inches in length and 9.84 inches in height. While the exact weight of the CRAFTSMAN is not listed, its larger housing and included 4.0Ah battery suggest it is heavier. The FLEX is better for overhead work or tight spaces where weight matters. The CRAFTSMAN is built for stability and power delivery in stationary applications.
Which impact tool fits your needs
Precision fastener work or electronics
Our pick: FLEX 24V Brushless 1/4-Inch Impact Driver
Choose the FLEX 24V model for tasks requiring fine control and speed. Its 2,500 in-lbs torque and three speed modes allow precise screw driving. The 1/4-inch hex quick eject collet enables fast bit changes. Its compact 4.7-inch length and 3-pound weight reduce fatigue during detailed assembly work.
Heavy duty lug nut removal
Our pick: CRAFTSMAN V20 RP Brushless Impact Wrench Kit
Select the CRAFTSMAN V20 kit for high-torque applications like automotive work. It delivers up to 1,000 ft-lbs of breakaway torque through a 1/2-inch hog rig anvil. The included 4.0Ah battery and charger provide a complete ready-to-use solution. Its brushless motor ensures efficient runtime for demanding jobs.
Complete tool kit starter
Our pick: CRAFTSMAN V20 RP Brushless Impact Wrench Kit
The CRAFTSMAN V20 arrives with a 4.0Ah battery and charger, making it an immediate solution. The FLEX tool is sold as a bare unit, requiring separate battery purchases. If you need a fully equipped impact wrench without extra buying, the CRAFTSMAN kit offers the necessary components in one package for versatile use.
FLEX 24V Brushless 1/4-Inch Impact Driver
Best for: FLEX users needing high torque and efficiency
- Voltage
- 24V
- Speed Modes
- 3 speed modes
- Motor Type
- Brushless
- Configuration
- Tool Only
- Included Tools
- Impact Driver
- Power Source
- Cordless
This FLEX 24V brushless impact driver delivers 2,500 in-lbs of torque in a tool-only configuration. It features a sensor-free motor and three speed modes for precise control. The design includes a quick eject collet and self-tapping screw modes to prevent stripping. You get a 5-year limited warranty if you register within 30 days. It is built for users already invested in the FLEX 24V ecosystem who need high power and efficiency.
- 2,500 in-lbs of torque output
- Sensor-free brushless motor for efficiency
- 3 speed modes for better control
- 5-year limited warranty with registration
- Quick eject collet for one-hand use
- Heavier at 3 pounds compared to lighter competitors
- Larger footprint with a 10-inch height
- Sold as a tool-only bare unit
- You already own FLEX 24V batteries and chargers
- You need high torque for demanding fastening tasks
- You want a brushless motor for longer battery life
- You need a complete kit with battery and charger included
- You prefer a lighter tool under 2.5 pounds
- You are using a different brand's battery platform
Verdict: FLEX 24V Brushless Impact Driver offers high torque and a strong warranty for FLEX ecosystem users. It fits professionals who prioritize power and efficiency over portability.
CRAFTSMAN V20 RP Brushless Impact Wrench Kit
Best for: High-torque 1/2-inch fastening tasks
- Drive Size
- 1/2 Inch
- Breakaway Torque
- 1000 ft-lbs
- Voltage
- V20
- Anvil Type
- Hog Rig Anvil
- Speed Modes
- 3 Speed
- Motor Type
- Brushless
This CRAFTSMAN V20 impact wrench features a brushless motor and a 1/2-inch drive. It delivers up to 700 ft-lbs of tightening torque and 1,000 ft-lbs of breakaway torque. The tool includes a 4Ah battery and charger in the package. You get three speed settings and a variable trigger for control. It weighs less than some competitors but offers high power for demanding tasks.
- Brushless motor for efficiency
- 1,000 ft-lbs breakaway torque
- Includes 4Ah battery and charger
- Three speed settings
- Lower max tightening torque than the FLEX 2,500 in-lb model
- Heavier and bulkier than the 1/4-inch FLEX tool
- You need high breakaway torque for stubborn bolts
- You prefer a 1/2-inch drive size
- You want a complete kit with battery and charger
- You require maximum torque output above 1,000 ft-lbs
- You need a compact 1/4-inch drive for tight spaces
- You prioritize the lightest possible tool weight
Verdict: CRAFTSMAN V20 1/2-Inch Impact Wrench suits users who need serious breakaway power in a standard 1/2-inch format. It is a solid choice for heavy-duty fastening where torque matters more than compact size.
Specifications side by side
| Spec | FLEX 24V Brushless 1/4-Inch Impact Driver | CRAFTSMAN V20 RP Brushless Impact Wrench Kit |
|---|---|---|
| Drive Size | – | 1/2 Inch |
| Breakaway Torque | – | 1000 ft-lbs |
| Voltage | 24V | V20 |
| Anvil Type | – | Hog Rig Anvil |
| Speed Modes | 3 speed modes | 3 Speed |
| Motor Type | Brushless | Brushless |
| Configuration | Tool Only | Battery and Charger |
| Battery Capacity | – | 4Ah |
| Chuck Size | – | 1/2 Inch |
| Included Tools | Impact Driver | – |
| Power Source | Cordless | Cordless |
| Torque Level | – | High Torque |
| Set Type | Tool Only | – |
| Dimensions | 4.7 × 4 × 10 inches | 12.2 × 5.87 × 9.84 inches |
| Weight | 3 pounds | – |
| Size | Tool Only | – |
| Color | Grey/Black | Black, Red |
| Model | FX1371A-Z | CMCF940M1 |
Frequently asked questions
Does FLEX make a 1/2-inch impact wrench?
The provided data lists only the FLEX 24V Brushless 1/4-Inch Impact Driver. This model uses a 1/4-inch hex drive, which is standard for drivers rather than wrenches. You would need to look for a different FLEX model if you require a 1/2-inch chuck for socket applications.
What is the weight difference between these tools?
The FLEX impact driver weighs 3 pounds. The CRAFTSMAN impact wrench does not list a specific weight in the provided specifications. You can expect the CRAFTSMAN unit to be heavier due to its larger 1/2-inch chuck and longer body designed for high torque output.
Are both tools cordless?
Yes, both the FLEX and CRAFTSMAN models are cordless. They operate using battery power sources. The FLEX unit is rated for 24V systems, while the CRAFTSMAN kit includes a 4.0Ah battery, indicating it likely uses a 20V platform common to the brand.
Which tool is better for heavy bolts?
The CRAFTSMAN V20 Brushless Impact Wrench is better for heavy bolts. It features a 1/2-inch chuck and is described as having high torque suitable for breakaway power. The FLEX model is an impact driver with lower torque, optimized for screws and smaller fasteners.
Do these tools include batteries?
The FLEX impact driver is sold as a bare tool, meaning it does not include a battery. The CRAFTSMAN impact wrench is sold as a kit that includes a 4.0Ah battery. You will need to purchase a compatible battery separately for the FLEX model.
What is the size of the FLEX tool?
The FLEX 24V Brushless Impact Driver measures 4.7 inches in length, 4 inches in width, and 10 inches in height. Its compact dimensions and 3-pound weight make it suitable for precision work where portability and control are priorities over raw power.
Can I use sockets on the FLEX driver?
No, the FLEX tool is a 1/4-inch hex impact driver. It accepts screwdriver bits, not sockets. You need a 1/2-inch impact wrench, like the CRAFTSMAN model, to attach and drive sockets for larger fasteners and lug nuts.
See also
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