ITEM NAME:Universal Joint Set Ratchet Angle Extension Bar Socket Adapter(1/4 Inch) N4J4 Universal Joint Set Ratchet Angle Extension Bar Socket Adapter(1/4 Inch) N4J4 Durable: Quenching heat treatment to the whole makes the hardness high, the product is durable. Beautiful appearance: The surface of the product has been chrome plated so that it is rust proof and beautiful. Easy to use: The product is suitable for all the hexagonal side handle four square hole groove, the sleeve can be conversed to each other freely, easy to use. Widely used: The product is applied to repair, car modification, wrench socket transformation, to make leverages can turn to any direction. it is widely applied to the vehicle transmission. Item type: Socket Joint of wrench Hardness: 60HRC. The diameter: 1/4inch 6.3mm; colour:Silver Material:steel Package Contents: 1 * Socket joint