Square drive:1/2" 
capacity bolt size:5/8", 16mm 
Free speed:7000rpm 
Max. torque:230ft-lb, 312N.m 
Hammer mechanism:rocking dog 
Air inlet:1/2" 
Air hose:3/8" 
Avg. air consumption:4cfm, 0.113m3/min 
Working pressure:90Psi, 6.3Bar 
Length x height:8.07"x7.87", 205x200 
Weight:4.8lb, 2.18kg 

only black finish impact sockets specifically made for the purpose should be used with impact tools. Chrome plated or normal sockets are designed with a thinner socket wall for improved access to fixings and are not designed to cope with the stresses caused by the force of an impact wrench and may shatter, resulting in personal injury.