1/4" (6MM) AIR DIE GRINDER RP - 7313 Lightweight aluminum body. Safety lever prevents accidental starts. Rear exhaust. It can be used with all types of accessories for porting, weld breaking, and smoothing sharp edges, as well as deburring, polishing, and grinding. Description Recommended air pressure 6.5KG/CM2(90 PSI) Free Speed : 25, 000RPM Grinder Cap : 1/4"(6mm) Air Intel : 1/4"NPT Sug Air Comp : 1.5HP Air Hose : 3/8”ID Avg Air consumption : 3cfm (86l/min) Packing : 20Pcs