... .p.m 2.Capacity Bolt Dia 18mm 3.Air Pressure 6-8kg 4.Air Inlet 1/4" 5.Anvil Length 1" ... the users before operating:Keen dry and clean of air cylinder and gas container , and be sure that the ... unit , be sure to fill in the air and water from air outlet of air cylinder, filter, and auto oil filter combination ... them to the dealer for repair or maintenance. 1/2''air impact wrench, tools, air torque wrench