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Milwaukee
Milwaukee M12 FUEL Right Angle Die Grinder
−53%
Home · MPR Tools & Equipment

The right-angle grinder that gets into tight spots

Milwaukee M12 FUEL Right Angle Die Grinder

Milwaukee's M12 FUEL right angle die grinder — a compact cordless tool for detail work that full-size grinders can't reach.

Deal score 6.4 · Great deal
$139.25$298.00 MPR Tools & Equipment's regular price

You save $158.75 at MPR Tools & Equipment

Checking it's still available…

Why it's a great deal

  • Elsewhere right now: Home Depot $229.00
  • MPR Tools & Equipment lists its regular price at $298.00: 53% off by its own figures
  • Rated 4.4 out of 5 by 163 buyers
Visit MPR Tools & Equipment

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About it

Milwaukee Tool M12 FUEL 1/4 Inch Right Angle Die Grinder 2 Battery Kit

From MPR Tools & Equipment

  • 1/4" variable speed right angle die grinder
  • 20,000 RPM
  • 4-mode control
Guarantee
1-Year Price Match Guarantee: if you find it at a lower price elsewhere within 365 days of purchasing, they credit back the difference.
Returns
30-day money-back guarantee; if not satisfied within 30 days of receiving the product, ship it back for a refund or exchange; request return authorization first
Shipping
Usually ships in 1 to 2 business days; orders before 2:00 pm EST may ship same day; free shipping on orders over a minimum subtotal; ships from Canada; estimate

Specs

Power Source
Cordless
Amperage
0 A
Voltage
12V
Wattage
600-899 W
Maximum Speed
20,000 RPM
Variable Speed
Yes
Safety Features
Lock-off switch
Grinder Type
Die Grinder
Grinder Brand
Milwaukee
Grinder Series
FUEL

About the Milwaukee M12 FUEL Right Angle Die Grinder

The Milwaukee 3485-20 is a cordless right-angle die grinder on the M12 battery platform. Its brushless motor spins 3,000 to 20,000 RPM with variable speed and a 1/4-inch collet, and the right-angle body fits into tight spots a straight grinder cannot reach. It is sold as a bare tool, so no battery or charger is in the box.

Best forAuto and motorcycle mechanics working in tight engine baysMetalworkers deburring and cutting in confined spacesM12 platform owners who want a compact grinderPros who already own M12 REDLITHIUM batteries and a charger
Pros
  • Right-angle head reaches spots straight die grinders cannot
  • Brushless motor with 0.4 HP output and 3,000–20,000 RPM variable speed
  • Compact, light body for one-handed control
  • Lock-off switch adds a safety step before startup
  • Runs on the wide M12 battery platform
Cons

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Price facts

  • Deal price today: $139.25 at MPR Tools & Equipment (checked Nov 11, 2026).
  • Checked at 24 stores.

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  • Bare tool: no battery or charger included
  • Small 1/4-inch collet limits it to light-duty bits
  • No vibration control or reduction
  • High RPM use drains small M12 packs quickly
  • Premium price for a 12V tool

    • What reviewers say

    • 4.4 / 5163 ratings

    Owners rate it 4.4 out of 5 across 142 ratings and mostly praise the compact right-angle design and smooth variable speed. Complaints center on battery runtime under heavy load and the bare-tool packaging.

    What people mention
    • Size and reachPraisedOwners say the right-angle head gets into engine bays and corners a straight grinder cannot.
    • Speed controlPraisedThe variable-speed trigger is described as smooth and easy to feather at low RPM.
    • Battery lifeCriticisedReviewers report small M12 packs run down quickly during sustained high-speed work.
    • Build qualityPraisedOwners describe the tool as solid and well made with little vibration.
    • Bare toolMixedSome buyers note the price is high given no battery or charger is included.

    Questions and answers

    Does it come with a battery and charger?
    No. The 3485-20 is a bare tool. You need a separate M12 REDLITHIUM battery and M12 charger.
    What size bits does it take?
    It uses a 1/4-inch collet, so it takes standard 1/4-inch shank burrs, cut-off wheels and sanding accessories.
    How fast does it spin?
    The brushless motor runs from 3,000 to 20,000 RPM with variable speed control.
    Is it good for cutting metal?
    Yes, with the right 1/4-inch cut-off wheels. It is best for light cutting, deburring and sanding rather than heavy grinding.
    Which batteries work with it?
    Any Milwaukee M12 REDLITHIUM battery. Larger capacity packs give longer runtime but add weight.
    When is the best time to buy?
    Prices on bare tools tend to dip during Milwaukee promotions and holiday sales.

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