The V20 Brushless RP 1/2" Drive High Torque Impact Wrench comes with a powerful brushless motor that provides the power necessary for a wide range of fastening applications with 700 ft-lbs of fastening torque and 1000 ft-lbs of breakaway torque. The three-speed transmission and variable speed trigger gives the user the necessary control for multiple applications. This kit includes 1 4Ah battery and a charger for a ready-to-use setup.
Is the CMCF940M1 compatible with CRAFTSMAN V20 batteries, and what size pack makes the most sense?
Yes. The CMCF940M1 runs on the V20 platform. A 4Ah battery is a middle ground: noticeably longer runtime than 2Ah without the extra weight of a 6Ah pack.
When should you choose the CMCF940M1 as sold versus another package option?
Because the CMCF940M1 includes one 4Ah battery and a charger, it is the simpler buy for someone starting from zero.
What do the key specs on the CMCF940M1 mean in actual use?
The headline numbers are 2000 RPM, 8400 in-lbs of torque, 0.5 in. chuck. Brushless motor construction affects efficiency and heat.
How much does the CMCF940M1's brushless motor matter to a buyer?
A brushless CMCF940M1 is the better buy if you use the tool often, want stronger efficiency from each charge, and expect longer service life under repeated load.
What kind of buyer is the CMCF940M1 aimed at?
The CMCF940M1 is for someone choosing around its actual numbers and package contents, not just the brand name: CRAFTSMAN V20 BRUSHLESS RP Cordless 1/2-Inch Impact Wrench with Hog Ring Anvil and (1) 4.0ah Battery and Charger with 2000 RPM, 8400 in-lbs of torque, 0.5 in. chuck and one 4Ah battery.
# CRAFTSMAN V20 BRUSHLESS RP Cordless 1/2-Inch Impact Wrench with Hog Ring Anvil and (1) 4.0ah Battery and Charger **Model:** `CMCF940M1` **Brand:** CRAFTSMAN **Category:** Impact Wrench > The V20 Brushless RP 1/2" Drive High Torque Impact Wrench comes with a powerful brushless motor that provides the power necessary for a wide range of fastening applications with 700 ft-lbs of fastening torque and 1000 ft-lbs of breakaway torque. The three-speed transmission and variable speed trigger gives the user the necessary control for multiple applications. This kit includes 1 4Ah battery and a charger for a ready-to-use setup. ## Specifications | Attribute | Value | |---|---| | Product Type | Impact Wrench | | Voltage (V) | 20 | | Cordless / Corded | Cordless | | Power Source | Battery | | Motor Type | Brushless | | Tool Only | No | | Batteries Included | 1 | | Battery Ah | 4 | | Charger Included | Yes | | Piece Count | 4 | | Battery Platform | V20 | | Barcode (UPC) | 885911833523 | | Country of Origin | China | | Warranty | 3-year limited | | Chuck Size (in.) | 0.5 | | Max Speed (RPM) | 2,000 | | Speed Settings | 3 | | Variable Speed | Yes | | Hammer Function | No | | Max Torque (in-lbs) | 8,400 | | No Load Rpm | 2,000 | ## What's Included - (1) V20 BRUSHLESS RP Cordless 1/2-Inch Impact Wrench with Hog Ring Anvil and (1) 4.0ah Battery and Charger - (1) V20 lithium-ion battery (4Ah) - (1) Charger Source: https://www.jaspecs.com/craftsman/impact-wrench/cmcf940m1-brushless-rp-cordless-1-2-inch-impact-wrench-4ah/