Specification: Cutting Wheel Size: 3 inch Maximum Rated Speed: 20000rpm Working Pressure: 90 PSI Average Air Consumption:4 CFM @ 90 PSI Housing Material:Die-cast Aluminum Air Inlet:1/4'' Recommended hose size:3/8'' Tool weight:600g Features: The high speed pneumatic cut off tool is equipped with 180 degrees wheel guard which is adjustable for 360 degrees, the wheel guard is made of chrome plated alloy steel which prevents sparks flying to your face. The air compressor cut off tool is also equipped with safety switch for maximum safety which could prevent accidental start-up.Built in air regulator for precise speed control, Safety throttle prevents accidental start up Maximum rotary speed up to 20,000rpm, helps you to cut efficiently Package Include: 1 x air cut off tool 5Pcs Cut off wheels 1pcs hss circular saw balde 1 x Collet wrench 1 x Allen wrench 1/4" NPT Applications: including cutting, polishing and grinding,porting, weld breaking, deburring.