Features: For maximum performance we recommend 90 PSI air pressure Powerful .6 horsepower motor Rear exhaust, compact motor housing Premium motor cylinder and 6 vane motor design for improved performance and life Motor shaft features ball bearings front and back, and motor end plates are made from durable die cast aluminum metal for maximum life and performance Insulating vinyl cover for operator comfort and safety Lever throttle with roller tip for ease of operation Air inlet screen filters air line debris, extending motor life Outstanding power, performance, durability and life Ideal for professional automotive and industrial applications Specifications:Air Inlet (NPT): 1/4"Average Air Consumption: 4.5 cfmCutting Wheel Size: 3"Disc Arbor Size: 3/8"Free Speed: 20,000 RPMHorsepower: 0.6Min. Hose Size: 3/8"Overall Length: 7"Product Weight: 1.75 lb (0.79 kg)Vibration: 98 dBA* All Pictures Shown Are For Illustration Purpose Only. Actual Product May Vary Due To Product Enhancement.