Professional socket adaptors for commercial or occasional use Suitable for impact gun use Manufactured from chrome vanadium steel for strength and durability Mixture of step up and step down adapters Ball bearing to stop the sockets form falling off when in use 8pc adapter set SET INCLUDES THE FOLLOWING • 2 x step up adapters - 1/4" - 3/8" • 2 x step down adapters - 3/8" - 1/4" • 2 x step up adapters - 3/8" - 1/2" • 1 x step down adapter 1/2" - 3/8" • 1 x step up adapter 1/2" - 3/4" Comes on a socket rail for easy storage and transportation