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CRAFTSMAN

CRAFTSMAN V20 CMCF940M1 Brushless Impact Wrench Kit

  • 700 ft-lbs fastening torque
  • 1000 ft-lbs breakaway torque
  • 1/2 in square drive, hog ring anvil
  • 3 speeds, variable speed trigger
  • 20V 4.0Ah battery and charger included
  • 12.2 in long, LED light
  • 3 year limited warranty

Updated 5 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A high torque half inch impact wrench kit with a battery, charger and bag, aimed at lug nuts and rusted suspension bolts. Weight and RPM figures are not listed.

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ASIN: B0BJLFSN22Model: CMCF940M1Category: Impact Wrenches

Overview

Not a compact stubby for tight engine bays, this is a full size half inch impact built for lug nuts and stuck bolts. A brushless motor drives it, and a three speed setting limits torque on smaller fasteners.

Breakaway torque high enough for seized fasteners, in a kit with battery and charger, makes it a strong choice for home mechanics. The listing gives no weight, RPM or impact rate, which matter for overhead work.

Who it's for

Car owners and DIY mechanics who rotate tires and fight seized hardware. Furniture assembly or small fastener work calls for a lighter impact driver.

Pros and cons

Pros
  • High breakaway torque
  • Three speed control
  • Battery, charger and bag included
  • Hog ring anvil for quick socket swaps
Cons
  • Weight not listed
  • RPM and impact rate not given
  • Sockets not included

Performance notes

Breakaway torque comes from the brushless motor and hammer mechanism delivering repeated blows. The speed setting caps power to avoid overtightening, and battery charge affects how hard it hits on long jobs.

Specifications

BrandCRAFTSMAN
ModelCMCF940M1
Dimensions & fit
Item Length12.2 inches
Capacity & performance
Speed settings3 speeds, variable speed trigger
Power & efficiency
Voltage20 volts
Construction & materials
Material TypeGlass filled nylon housing
ColorBlack, Red
Finish TypesPlastic
Included components
Included ComponentsCMCF940 impact wrench, CMCB204 4.0Ah battery, CMCB104 charger, soft bag
Unit Count1 Count
Warranty & support
Manufacturer Warranty Description3 year limited
Other details
Head Style1/2 inch square drive, hog ring anvil
Item Torque700 ft-lbs fastening, 1000 ft-lbs breakaway
Measurement StandardSAE
Operation ModeBattery
MotorBrushless
End StyleSocket End

Frequently asked questions

What comes in the CRAFTSMAN CMCF940M1 kit?

The impact wrench, a 4.0Ah battery, a charger and a soft bag. Sockets are not included.

Can the CRAFTSMAN impact remove lug nuts?

It delivers up to 1000 ft-lbs of breakaway torque, which suits lug nuts and stuck bolts.

Does the CRAFTSMAN CMCF940M1 have a friction ring or pin anvil?

It uses a hog ring anvil for easier socket changes.