SKU: 800583707

Milwaukee 3487-20 M12 FUEL™ 1/4" Extended Die Grinder (Tool Only)

Sale price$112.05 Regular price$124.50
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

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Description

Milwaukee 3487-20 M12 FUEL™ 1/4" Extended Die Grinder (Tool Only)Get deeper access without sacrificing power. The Milwaukee 3487 20 M12 FUEL 1 4" Extended Die Grinder is designed for professional mechanics, fabricators, and technicians who need maximum reach for grinding, deburring, surface prep, and weld cleanup in tight and hard to access locations. Powered by Milwaukee's POWERSTATE Brushless Motor, this extended die grinder delivers cordless performance that rivals pneumatic tools while eliminating hoses,

Get deeper access without sacrificing power.

The Milwaukee 3487-20 M12 FUEL™ 1/4" Extended Die Grinder is designed for professional mechanics, fabricators, and technicians who need maximum reach for grinding, deburring, surface prep, and weld cleanup in tight and hard-to-access locations.

Powered by Milwaukee's POWERSTATE™ Brushless Motor, this extended die grinder delivers cordless performance that rivals pneumatic tools while eliminating hoses, compressors, and the hassle that comes with them. The extended neck design provides superior access inside engine compartments, suspension assemblies, fabrication projects, and confined work areas.

With variable speed control, a responsive paddle trigger, and compatibility with standard 1/4" shank accessories, the 3487-20 offers the control and versatility professionals demand.

Features

  • ✔ Extended Reach Design for Maximum Access
  • ✔ POWERSTATE™ Brushless Motor
  • ✔ Cordless Freedom Without Air Hoses
  • ✔ Variable Speed Trigger for Precision Control
  • ✔ Multiple Speed Modes for Different Applications
  • ✔ Optimized for Grinding, Deburring, Porting & Surface Preparation
  • ✔ Integrated LED Work Light
  • ✔ Compatible with Standard 1/4" Shank Accessories
  • ✔ Works with All Milwaukee M12™ Batteries

Specifications

  • Model: 3487-20
  • Product Type: Extended Die Grinder
  • Collet Size: 1/4"
  • Platform: M12™
  • Motor Type: POWERSTATE™ Brushless
  • Variable Speed Control: Yes
  • LED Light: Yes
  • Tool Only: Yes
  • Battery Included: No
  • Charger Included: No
  • Warranty: 5-Year Limited Tool Warranty

Ideal Applications

  • Port Matching
  • Gasket Surface Cleaning
  • Weld Cleanup
  • Deburring
  • Rust Removal
  • Metal Fabrication
  • Automotive Repair
  • Engine Bay Work
  • Suspension Service

What's Included

  • (1) Milwaukee 3487-20 M12 FUEL™ 1/4" Extended Die Grinder
  • Accessory Wrench

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 800583707

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4.0 ★★★★★
Based on 445 reviews
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Product Reviews
M
Verified Purchase
M. Del
Cuba, US
★★★★★ 5
Good stuff
Size: 50 sqft, Size: 50 sqft
Good stuff. I did a lot of work on my 91 Toyota Land Cruiser 3FE. I did the inside and outside doors, as well as the under-hood area, with some extra work. I like this stuff. It sticks down good but you have to clean your surface so there's a good grip. I think these are going to do well for noise cancellation. The deadening material does well with absorbing vibrations too. But the install roller tools it will come in handy. Trust me trying to do it by hand is not worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
C
Verified Purchase
Charlie J
Port Orchard, US
★★★★★ 4
Good quality
Size: 10 sqft
I wish it was a little better but it definitely works great and look good for how cheap it is
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
R
Verified Purchase
R. Selberg
Chelsea, US
★★★★★ 5
Works well
Size: 10 sqft
Worked great at a budget price. I used it to damp a fiberglass loudspeaker horn. Easy to work with too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
D
Verified Purchase
Devan
Whiting, US
★★★★★ 5
Good material but bites back
Size: 20 sqft
Very good product for my rear trunk and backseat on my mustang. I would recommend some type of gloves due to the foil itself when placing down will cut up your hands and fingers. Overall good product for its price.
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Reviewed in the United States on May 23, 2026
M
Verified Purchase
Mike
Natrona Heights, US
★★★★★ 5
Great sound mat for the price!
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
This is a good product. Many people go with KILMAT because of the value to price point. I did as well. When you clean the surface (in my case it was all painted metal) this stuff sticks very well. I do recommend you use a seam roller of some type, I used Lumiteco 3 piece roller set. This will help with adhesion and mostly flatten the overlapped edges. It also helps you see where you have rolled as it leaves little grooves. The difference when we had no sound mats and after was very impressive. We haven't finished our install yet and it is quieter than when we had an interior in the van. There are thicker mats available in other brands, but this will work great for our van build, but this helps keep the weight down. It is quality material, just be careful when you are removing the backing, the edge of the foil face can cut you. I suggest you layout where you are installing the mat and cut to fit. From what I have read, you don't need to cover every inch in the vehicle, just spot install for a big difference. I chose to cover most surfaces to help keep sound out when we are sleeping in the van. We haven't finished putting the van yet, but we have driven it around and been very satisfied with this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025

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