Set of 8 adaptors for converting impact drive sizes Features: • Chrome Vanadium Steel • Black phosphate finish • Supplied on metal storage rail Specification: 1/2" F x 3/4" M - 1 piece 1/2" F x 3/8" M - 1 piece 3/8" F x 1/2" M - 2 pieces 3/8" F x 1/4" M - 2 pieces 1/4" F x 3/8" M - 2 pieces