A high quality 1/4" Mini Air Die Grinder, Compact and light weight, Lever throttle for feather control, Front exhaust air flow system, Free speed: 25,000rpm, Capacity: 1/4", Air pressure: 90psi, Air consumption: 4CFM, Inlet size: 1/4" NPT, Length: 5 1/2", Net weight: 3/4 lb