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Milwaukee M12 FUEL 1/4 in. Right Angle Die Grinder 3485-20 with M12 REDLITHIUM HIGH OUTPUT Battery

Milwaukee M12 FUEL 1/4 in. Right Angle Die Grinder 3485-20 with M12 REDLITHIUM HIGH OUTPUT Battery

4.4· 164 ratings

Last price we saw

$286.27at MSC Industrial Supply, last seen Nov 1

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Our take on the Milwaukee M12 FUEL 1/4 in. Right Angle Die Grinder 3485-20 with M12 REDLITHIUM HIGH OUTPUT Battery

The Milwaukee 3485-20 is a cordless 12V right-angle die grinder with a 1/4-inch collet and a variable-speed trigger. Its compact right-angle head reaches into tight spots that straight grinders cannot, and the brushless FUEL motor gives it more torque and runtime than older brushed 12V tools. This listing bundles one M12 REDLITHIUM HIGH OUTPUT battery, which is the pack the tool needs to perform at its best. It is a specialty metalworking and fabrication tool, so it costs more than a basic air die grinder but removes the need for a compressor and hose.

Best forMetalworkers deburring and blending weldsAuto and motorcycle mechanics in tight engine baysFabricators who want cordless freedom from an air hoseTrade users already on the M12 battery platform
Pros
  • Right-angle head fits where straight die grinders cannot
  • Brushless FUEL motor delivers strong torque for a 12V tool
  • Variable-speed trigger gives control for finishing work
  • Runs on the large M12 battery ecosystem
  • Compact and light enough for one-handed use
Cons
  • 12V power limits it against corded or 18V grinders for heavy stock removal
  • High Output battery adds cost and is needed for full performance
  • Runs hot and drains batteries under continuous load
  • No speed dial, only trigger modulation
  • Bare-tool buyers pay extra for the bundled battery

Milwaukee M12 FUEL 1/4 in. Right Angle Die Grinder 3485-20 with M12 REDLITHIUM HIGH OUTPUT Battery prices at every store

  • MSC Industrial SupplyCheck price at MSC Industrial Supply

Milwaukee M12 FUEL 1/4 in. Right Angle Die Grinder 3485-20 with M12 REDLITHIUM HIGH OUTPUT Battery price history

Lowest price we've seen: $286.27 on Nov 1 at MSC Industrial Supply. Tracked across 1 store since Nov 1.

What reviewers say

Owners rate it highly as a compact, capable cordless grinder for deburring, porting and light weld blending. Most praise the size and power for a 12V tool; complaints center on heat, battery drain and the price of the High Output pack.

Pros
  • Fits into tight spaces a straight grinder cannot reach
  • Surprising torque and speed for a 12V tool
  • Good balance and control with the variable trigger
  • Solid build quality typical of Milwaukee FUEL tools
Cons
  • Gets hot during long continuous use
  • Eats through battery charge under load
  • Expensive once the High Output battery is included
  • Trigger-only speed control is less precise than a dial

Specifications

Voltage
12.00
Switch Type
Trigger
Batteries Included
Yes
Battery Chemistry
Lithium-ion
Battery Series
M12
Speed Control Type
Variable
Handle Type
Straight
Tool Type
Right Angle Die Grinder
Collet Size (Decimal Inch)
1/4
Number Of Batteries
1
Country Of Origin
VARIOUS

Questions and answers

Is the Milwaukee M12 FUEL right angle die grinder worth it?
For trade users who already own M12 batteries and need to grind in tight spots, yes. It replaces an air die grinder without a compressor. For heavy stock removal, a corded or 18V tool is a better fit.
Does it come with a battery and charger?
This listing includes one M12 REDLITHIUM HIGH OUTPUT battery. Check the box contents for a charger, since kits and bare tools differ and the charger is often sold separately.
What size accessories does it take?
It uses a 1/4-inch collet, the standard shank size for die grinder burrs, mounted points and cut-off wheels. Most air-tool accessories fit directly.
How does it compare to the straight M12 die grinder?
The right-angle head reaches into tighter spaces and is easier to control along a surface. The straight version is better for long reach and pencil-style work.
How long does the battery last?
Runtime depends on load. Expect short bursts of grinding per charge with the High Output pack, and keep a spare battery for continuous work.
When is it cheapest?
Milwaukee promotions and holiday sales tend to bring the best prices, often as a kit or with a free battery. Watch the price history rather than buying at list.
What do buyers say about the Milwaukee M12 FUEL 1/4 in. Right Angle Die Grinder 3485-20 with M12 REDLITHIUM HIGH OUTPUT Battery?
Rated 4.4 out of 5 from 164 ratings.

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