This Draper Impact Socket Converter is chemically blacked for corrosion protection This Draper Impact Socket Converter is forged from chrome vanadium steel which is hardened, tempered and chemically blacked for corrosion protection for maximum durability. Groove and hole in the 1/2\" female end to receive a ring and pin. It has a hole in the 3/4\" male end to receive a pin. Display packed. Features Hardened, tempered and chemically blacked chrome vanadium steel Hole in the 3/4\" male end to receive a pin Groove and hole in the 1/2\" female end to receive a ring and pin Specification Dimensions: 200 x 100 x 50mm Weight: 0.4Kg