Product details : BAHCO K8167S POWER UNIVERSAL JOINT 1/2
Square drive adapter 1/2 "DIN 3121-G 12.5 ISO 1174. Type: phosphated. Material: high alloy steel, ideal for good impact pressure. Max. angle 30. Bored through-and-through. To be used with machines. Use a snap ring for maximum safety. D2 = outer diameter of the female side.