Professional impact accessory set for commercial or occasional use 6pc set including adaptors, extension bars and UJ (Universal Joint) swivel adaptor 1/2in drive so will fit any 1/2in drive ratchets, power bars etc... Manufactured from CR-mo steel for maximum strength and durability Impacted bits so perfect for use with high torque tools such as impact guns SET INCLUDES THE FOLLOWING • 1 x 1/2in drive Impact Extension Bar – total length 75mm (3 inches) • 1 x 1/2in drive Impact Extension Bar – total length 150mm (6 inches) • 1 x 1/2in drive Impact Extension Bar – total length 250mm (10 inches) • 1 x 1/2in – 3/8in female - male step down adaptor / converter • 1 x 1/2in – 3/4in female - male step up adaptor / converter • 1 x 1/2in drive universal joint (UJ) – Impacted Comes in a blow molded case for easy storage and transportation