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Milwaukee

Milwaukee Electric - M18 Fuel. Braking DIE Grinder Slide Switch

  • Based on 265 reviews
Condition: New
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$153.00 Why this price?
Holiday Deal · 3% off was $158.00

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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Dec 21 – Dec 22
Order within 5 hours and 43 minutes
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Features

  • Spindle Lock
  • Slide Switch
  • Delivers up to 12" of weld bead removal
  • 27,000RPM Motor
  • 0

Description

Milwaukee 2939-20 18V Cordless 1/4" Braking Die Grinder Slide Switch (Tool Only), Chrome

Brand: Milwaukee


Material: Metal


Product Dimensions: 15.5"L x 3.11"W x 3.27"H


Style: Hammerdrill


Power Source: Battery Powered


Brand: ‎Milwaukee


Material: ‎Metal


Product Dimensions: ‎15.5"L x 3.11"W x 3.27"H


Style: ‎Hammerdrill


Power Source: ‎Battery Powered


Color: ‎Gray


Voltage: ‎18 Volts


Maximum Rotational Speed: ‎20000 RPM


Manufacturer: ‎Milwaukee Electric


UPC: ‎045242755936


Part Number: ‎2939-20


Item Weight: ‎3.58 pounds


Item model number: ‎2939-20


Is Discontinued By Manufacturer: ‎No


Size: ‎L


Item Package Quantity: ‎1


Number Of Pieces: ‎1


Special Features: ‎Spindle Lock


Included Components: ‎Milwaukee Electric - M18 FUEL. BRAKING DIE GRINDER


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Manufacturer Warranty


Date First Available: April 6, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 21 – Dec 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Powerful and Reliable Cordless Grinder for Precision Work
The Milwaukee 2939-20 18V Cordless 1/4" Braking Die Grinder is a fantastic tool that delivers on power and precision. As a professional, I rely on high-performance tools, and this die grinder does not disappoint. The braking feature is excellent for added control and safety during use, especially when working with intricate parts. The 18V battery provides solid power, and I love the fact that it’s cordless, which makes maneuvering much easier. It’s lightweight but still packs a punch, making it ideal for long working sessions. The slide switch is simple and easy to operate, and the chrome finish gives it a sleek, professional look. Overall, it’s a highly durable and reliable grinder that I would recommend to anyone in need of a quality tool for detailed grinding and polishing tasks. ... show more
Reviewed in the United States on April 17, 2025 by Khalid Mohamed Khalifa Hasaneen
    • Verify you need this size, it’s large!
Typical Milwaukee build quality! Adjustable and make sure this is the right size for your needs, it’s huge compared to their smaller units. Batteries last a good while, when using all sorts of bits.
Reviewed in the United States on November 24, 2025 by BG
    • Must for plumber,pipe fitter, pipelayers
As a pipelayer this tool is invaluable. Specifically used when cutting down roof drains or cutting existing pvc pipe that were stubbed too far into manholes. When you don't want to shovel 2' around a pipe to fit a Sawzall just hold this sucker down inside your pipe and cut it out clean and easy. I've never had an issue like some but we don't have weak wrists and forearms here. Never used it to cut D.I.P. or cast. Only PVC schd 40, sdr 35 and 26. Time saver. Highly suggest metal blades don't get the abrasive cutting wheels. Get diamond and metal ones they last sooooo much longer. You'll need to buy a Mandrel For Cut-Off Wheels W/3/8" Arbor Hole, 1/4" Stem to use this tool it does not come with one. And of course blades with a 3/8" hole usually 3" diameter for use. It's a must. Cheap tool saves you money on it's first few uses. Stay safe ditch diggers. ... show more
Reviewed in the United States on August 9, 2025 by Jon
    • Powerful and Efficient Grinder!
I recently added the Milwaukee 2939-20 18V Cordless 1/4" Braking Die Grinder to my tool collection, and it’s been outstanding. The power and performance are excellent for all my grinding and polishing needs. The 18V battery provides plenty of runtime, and I love the braking feature—it's a game-changer for safety and precision, ensuring that the tool stops quickly after use. The slide switch is smooth and easy to operate, and the grinder itself feels well-balanced and comfortable to use. The chrome finish looks great and adds to the overall durability of the tool. It’s perfect for tight spaces, and the cordless design makes it super convenient. Highly recommend this die grinder for both professional and DIY use—it’s built to last and performs incredibly well! ... show more
Reviewed in the United States on April 29, 2025 by Victoria Witsaman
    • Milwaukee die grinder
This thing is bee’s knee’s rips through welds, helps with clean stops and starts definitely wear safety glasses through chips like no other
Reviewed in the United States on November 6, 2025 by Rotten17
    • Underperforming Die Grinder
The slide switch is awkward and hard to use, and the grinder lacks power for heavy-duty tasks. It also feels bulky and uncomfortable to handle.
Reviewed in the United States on September 16, 2024 by ricky salinas
    • They make one with speed control.
It works great. I wish I had known there was no speed control.
Reviewed in the United States on October 22, 2025 by T
    • Excellent die grinder
Had the M12 die grinder and needed a bigger one. This works great.
Reviewed in the United States on November 3, 2025 by D R Wisdom

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