Milwaukee
Milwaukee Tool M18 FUEL Braking Die Grinder, Slide Switch
- SKU:
- MLW2939-20
- Availability:
- Usually Ships Same Day
- Weight:
- 3.74 LBS
Description

DUTY®
M18 FUEL
Die Grinder
Model 2939-20 • M18 cordless cutting and finishing
Product Overview
This braking die grinder combines a brushless motor with a spindle lock for accessory changes.
A slide switch controls operation. RAPIDSTOP braking supports accessory stopping after use.
- Slide SwitchControl operation at the switch.
- Spindle LockOne-wrench accessory changes.
- RAPIDSTOPIntegrated accessory braking.
- Brushless MotorCordless POWERSTATE motor.
Technical Specifications
- Model
- 2939-20
- Battery system
- M18
- Shank size
- 1/4 in.
- Maximum speed
- 27,000 RPM
- Switch
- Slide
- Accessory size
- Up to 2 in.
Choose the Correct Fit
Check accessory shank, diameter and speed rating. Milwaukee specifies up to 2-inch cutting and sanding accessory compatibility.
Installation & Care
Remove the battery before accessory changes. Inspect the collet and accessory, use the spindle lock as instructed and follow the mounting procedure.
Small Details. Big Jobsite Energy.
Get set. Stay focused. Make your next move count.
THE NEXT JOB.
Ask Willy:
Need help choosing this cordless tool? Share model 2939-20, your task and the accessories you plan to use.
Important Product Questions
What shank size is specified?
The model accepts 1/4-inch shank accessories. Confirm diameter and speed ratings separately before installation.
How is operation controlled?
The tool has a slide switch and a listed motor speed of 27,000 RPM.
Does it have a spindle lock?
Yes. The spindle lock supports one-wrench accessory changes. Remove the battery and follow the manual before changing an accessory.