These BlueSpot Impact Socket Adaptors are manufactured from chrome vanadium steel for increased strength and durability. The adaptors have a 1/4in hex shank drive and are suitable for use with cordless screwdrivers and drills. A ball bearing helps secure the socket when in use. This 3 piece set contains 1/4in 3/8in and 1/2in. Specification: Length: 150mm (6in)PTDB/S14117
