Impact Adapters, 1/2 in (female square); 3/4 in (male square) drive, 2 in

Designed for superior performance permitting easy interchange of tools from one drive size to another Meets and exceeds ASME B107 hand tool standards Forged and machined for best fit and unyielding strength Precision Heat-Treated and tempered for optimal hardness, ductility and durability Easy to read stamp pattern in order to quickly determine opening size Oiled black oxide finish