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Milwaukee M12 Fuel Brushless Cordless 1/4 in. Die Grinder Tool Only

The Milwaukee M12 Fuel Brushless Cordless 1/4 in. Die Grinder Tool Only is built for precision metal finishing in tight, hard-to-reach spaces. Grounded in Milwaukee’s trusted M12 F…

Milwaukee MPN 3485-20
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This product isn’t sold on our website — see your local hardware store.

Typical Store Price i
Typical store price: low $194.99, average $229.00
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About Product Overview

The Milwaukee M12 Fuel Brushless Cordless 1/4 in. Die Grinder Tool Only is built for precision metal finishing in tight, hard-to-reach spaces. Grounded in Milwaukee’s trusted M12 Fuel platform, this tool delivers efficient, controlled grinding without the chaos of cords, making it a dependable companion in automotive shops, fabrication benches, and busy workshops alike.

Key features that set it apart

  • Brushless efficiency means longer motor life and steadier performance under demanding tasks—less maintenance and more consistent results.
  • 1/4 in. collet accommodates standard die grinder bits and burrs, giving you versatility for deburring, shaping, and porting with familiar, readily available accessories.
  • Variable speed up to 2000 RPM provides precise control for a range of materials and finishes, from delicate deburring to aggressive material removal.
  • Cordless convenience removes the restriction of hoses and outlets, enabling work in corners, overhead, or on-site projects where flexibility matters.
  • Compact, ergonomic design supports steady handling in confined spaces, helping you maintain control during extended use.
  • Tool Only configuration focuses on upgrading or expanding your existing setup without extra kit components.
  • Durable dimensions for portability with a compact footprint (approx. 4.1 in length, 2.2 in width, and 8.2 in height) that fits where larger grinders can’t.

What tasks is it ideal for?

From smoothing welds and deburring sharp edges to refining porting surfaces and light material removal, this die grinder excels in situations where precision matters more than brute force. It’s well-suited for automotive body work, fabrication shop finishing, and any project that demands clean radii, tight contours, and a refined finish on metal, wood, or composite substrates.

Why choose this over alternatives?

Compared to corded grinders, this tool’s cordless design unlocks greater maneuverability in cramped quarters and on scaffolding or equipment that’s hard to reach. The brushless motor reduces heat buildup and wear, contributing to steadier performance and longer service life between maintenance intervals. With a 1/4 in. collet, you can rely on a broad ecosystem of readily available bits, simplifying your shop setup and inventory.

Usage tips for best results

  • Use appropriate 1/4 in. shank grinding bits and burrs designed for metal shaping to maximize efficiency.
  • Take advantage of the variable speed to start slow for delicate deburring, then ramp up for faster material removal when needed.
  • Keep a steady grip and support your workpiece surface to prevent chatter and achieve a smoother finish.

The Details Specifications

Brand Milwaukee
SKU 2043890
UPC 045242877690
Unit 0
Case Pack Quantity 18 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 3 × 5 × 10
Weight 2 lbs
Cubic Feet 0.09402 ft³
Country of Origin MEXICO
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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