Set of impact adaptors for use on all types of impact tools. Manufactured from drop-forged Chrome Molybdenum steel with a manganese phosphate finish for corrosion resistance. Features & Benefits:Set of impact adaptors for use on all types of impact tools.Manufactured from drop-forged Chrome Molybdenum steel with a manganese phosphate finish for corrosion resistance.Contents: 3/8"(F) x 1/4"(M), 1/4"(F) x 3/8"(M), 3/8"(F) x 1/2"(M), 1/2"(F) x 3/8"(M) Sq. Drive.Lifetime guarantee*.Model No. AK5523 Specifications: Model No AK5523 Brand: Premier Contents: 3/8"(F) x 1/4"(M), 1/4"(F) x 3/8"(M), 3/8"(F) x 1/2"(M), 1/2"(F) x 3/8"(M) Sq Drive Nett Weight: 0.193kg