CHICAGO PNEUMATIC Best Performance. Range of Products. Best Quality offers a complete range of industrial air tools. High quality, reliable, industry-leading pneumatic power tools in Middle East. Brands: Impact Wrench, Torque Wrench, Grinders. This general-duty angle grinder is powered by compressed air. Grinder Orientation / Angle Free Speed / 12,000 RPM Wheel Dia. / 4 in Wheel Type / Type 27 HP / 0.8 hp Duty / Standard Average CFM @ 15 Second Run Time / 11.6 CFM @ Full Load / 23.3 Air Inlet / 1/4 in NPT Required Pressure / 90 psi Min. Hose Size / 3/8 in Overall Length / 9 3/10 in Handle Material / Cast Aluminum Variable Speed / Yes Exhaust / Front Throttle / Lever Lock / Yes Includes / Side Handle Parts and Instruction Manual Grinder Type / ABNGLE Spindle Size / 3/8"-24