This Chicago Pneumatic standard-duty air die grinder features an adjustable speed regulator for precise control and lock off throttle to prevent accidental startups. Key Product Specs Air Consumption (CFM) 6.5 CFM at Load 26 Speed (RPM) 22,000 Air Inlet Size (in. NPT) 1/4 Min. Hose Size (in.) 3/8 Collet Size (in.) 1/4 and 6mm Variable Speed Yes Side Handle No Tool Weight (lbs.) 1 1/4 Tool Length (in.) 5 3/4 Additional Product Specs * Applications: Tire scuffing, cleaning tire moldings, general high speed polishing and grinding * Lock off throttle * Rear exhaust * Built-in regulator * Low vibration