1/2"(12.7MM) AIR IMPACT WRENCH KIT (PIN CLUTCH HAMMER;FRONT EXHAUST) FREE SPEED:8,200 RPM;MAX.TORQUE:360 FT-LB=488N-m OIL POT;MINI OILER;NIPPLE 5"EXT.BAR;4MM HEX KEY; SOCKETS:9,10,11,13,14,17,19,22 24,27MM FEATURE: 1.IT CAN SLIGHTLY CONTROL TORQUE. DIE CASTING HOUSING. CLUTCH HOUSING WON'T BE HOT WHEN OPERATE IT. LOW VIBRATION. 2. ANVIL IS JAPAN'S STEEL AND MADE IN TAIWAN 3. DETAILS WORKING FOR EVERY INSIDE SPARE PARTS