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The Milwaukee M18 4-1/2″ Cut-off/Grinder provides users with the speed, durability, and ease of use to handle industrial applications. The cut-off grinder has a 4-pole motor, delivering users maximum power when cutting or grinding. The tool is the only cordless cut-off/grinder in the market to feature the user-preferred paddle switch, providing comfort and ease of use when operating in various positions. L-shape intake vents protect the grinder cut-off tool by keeping harmful debris from entering the tool and damaging internal components. The tool is powered by M18 REDLITHIUM battery packs (sold separately), providing users with 35% faster-cutting speed and up to 50% more cuts on a single charge.


  • Milwaukee 4-pole motor – Delivers maximum power when cutting or grinding
  • Overload protection – prevents damage to the tool and battery in heavy-duty situations
  • Debris baffles – L-shape vents keep debris from entering the tool and damage internal components to help increase tool life.
  • Tool-free, burst-resistant guard – Allows for quick, easy guard adjustments. Easy to access and actuate to free guard makes it easier and less time-consuming to adjust the guard for various applications.
  • Paddle switch design – The only cordless cut-off /grinder in the market with a paddle switch design
  • Up to 35% faster-cutting speed
  • Up to 50% more cuts on a single charge
  • 3-Position side handle – Provides optimal Control and Versatility


  • Brand: Milwaukee
  • Dimensions: 10 x 12 x 4.5 Inches
  • Weight: 4.4 Pounds
  • Cordless/Corded: Cordless
  • Cordless Tool Type: Angle Grinder
  • Motor Type: Brushed
  • Wheel Diameter: 4.5 in
  • Power Tool Features: Adjustable Handle Position, No Tool Wheel Change, Spindle Lock
  • Voltage: 18V
  • Grinder Switch Type: Paddle
  • Maximum Speed: 9000 RPM
  • Arbor Size: 0.625
  • Battery/Charger: Tool Only