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Home / Categories / Grinders & Sanders / M18 FUEL 18-Volt Lith-Ion Brushless Cordless 4-1/2 in./6 in.
Milwaukee

Milwaukee M18 FUEL 18-Volt Lith-Ion Brushless Cordless 4-1/2 in./6 in. Braking Grinder w/ Paddle Switch w/ 4-1/2 in./5 in. Grinder

Milwaukee M18 FUEL 18-Volt Lith-Ion Brushless Cordless 4-1/2 in./6 in. Braking Grinder w/ Paddle Switch w/ 4-1/2 in./5 in. Grinder
M18 FUEL 18-Volt Lith-Ion Brushless Cordless 4-1/2 in./6 in. view 2
$489 to $805
  • Brand Milwaukee
  • Model 3670-20-28
  • Tool type Grinders & Sanders › Angle grinder
  • Configuration Kit (2 configurations listed)
  • Voltage 18 V
  • Brushless motor Yes (stated in the listing)
  • Battery platform M18
  • Size / capacity 4-1/2 in.
  • Battery capacity 8 Ah
  • In the box Listing states: 2 batteries

Commission earned on qualifying purchases. Choose a configuration below.

Prices were listed by the retailer as of Oct 30, 2026 and can change. Confirm the current price and availability on the retailer's page before you buy.

Configurations and prices

The same model is listed in different configurations. Compare like with like: a bare tool has no battery or charger stated, a kit lists what comes with it.

Kit
M18 FUEL 18-Volt Lith-Ion Brushless Cordless 4-1/2 in./6 in. Braking Grinder w/ Paddle Switch w/ 4-1/2 in./5 in. Grinder
$489.00
Combo kit
M18 FUEL 18-Volt Lith-Ion Brushless Cordless 4-1/2 in. /6 in. Braking Grinder w/ Two XC 8.0 Ah Battery & Impact Driver
$805.00

Commission earned on qualifying purchases.

About this angle grinder

This is a cordless angle grinder from Milwaukee's M18 line, with an 18-volt lithium-ion battery system, a brushless motor and a paddle switch. It takes 4-1/2 inch discs and is listed with a braking feature, along with a 4-1/2 inch and 5 inch grinder noted in the listing. This kit is listed with two batteries, each stated at 8 Ah. It suits shoppers who already own M18 tools or plan to build around that platform. Before buying, check that the M18 battery system matches what you have, confirm you want the kit configuration rather than the combo kit, and make sure the 4-1/2 inch disc size fits your work.