Chainsaw Sharpener Grinder W/ Grinding Wheels Versatile Pro Tool 1/8 & 3/16 Firm Aluminum Construction Working Lamp & Safety Handle Constant Commercial Motor Firm Vise for Holding Chains Large Grinding Wheel Various Usage Maximum speed: 3000 RPM,Grinding Diameter: 5.5',Arbor Size: 0.875',Voltage: 110V±15%, 60Hz,Material: Aluminum,Protection: IP20,Power: 230 W(Peak 350 W),Weight: 12.8 lbs,Sharpens chain pitch: 1/4', 3/8' Low Pro, 0.325', 3/8', 0.404',Noise level: 85dB(A)