Item No.: H15E654

.Drop Forged and Heat Treated Chrome Vanadium Steel。

.Size：1/4",9/32",5/16",11/32",3/8",13/32",7/16",15/32",1/2";

.Power Drive 1/4" Hex Shank (Overall length:  1-7/8");

.Black phosphate coating for corrosion resistance.