1/4" AIR SCREWDRIVER (EXTERNAL ADJUSTABLE CLUTCH) BOLT CAPACITY: 15/64" ~ 5/16" (DIA 6 - 8MM) NET WEIGHT: 2.5 LBS (1.13KGS) LENGTH: 7" ( 178MM) AVG. AIR CONS.: 4 CFM (90 L/MIN) AIR INLET: 1/4" HOSE SIZE: 3/8" (9.5MM) AIR PRESSURE: 90 PSI (6.3 KG/CM2) MAX. TORQUE: 115 IN-LB FREE SPEED: 1,800 RPM