1-3/16" Heavy Duty High Speed Micro
Rear Exhaust.
Wheel Size: 1-3/16(30mm)
Spindle Thread: M7-P0.75
Free Speed: 23,500 rpm
Overall Length: 5.5"(140mm)
Air Inlet: 1/4
Air hose I.D: 3/16
Air consumption: 4.2cfm(120L/min)
Weight: 0.15kg(0.34ib)