Comprehensive set of impact adaptors for use on all types of impact tools. Manufactured from drop-forged Chrome Vanadium steel with phosphate finish for added corrosion resistance. Supplied in storage case. Features & Benefits:Comprehensive set of impact adaptors for use on all types of impact tools.Manufactured from drop-forged Chrome Vanadium steel with phosphate finish for added corrosion resistance.Contents: 1/4"(F) x 3/8"(M), 3/8"(F) x 1/4"(M), 3/8"(F) x 1/2"(M), 1/2"(F) x 3/8"(M), 1/2"(F) x 3/4"(M), 3/4"(F) x 1/2"(M), 3/4"(F) x 1"(M), 1"(F) x 3/4"(M).Supplied in storage case.Lifetime guarantee*.Model No. AK5900B Specifications: Model No AK5900B Brand: Premier Contents: 1/4"(F) x 3/8"(M), 3/8"(F) x 1/4"(M), 3/8"(F) x 1/2"(M), 1/2"(F) x 3/8"(M), 1/2"(F) x 3/4"(M), 3/4"(F) x 1/2"(M), 3/4"(F) x 1"(M), 1"(F) x 3/4"(M) Sq Drive Nett Weight: 1.34kg