Kincrome 15 Piece Reversing Gear Spanner set. Forged from Chrome Vanadium Steel, hardened, tempered, chrome plated and polished with a light satin finish for corrosion protection. With 72 teeth, the strong fine gear ratcheting ring end needs as little as 5 degree of sweep to move fastener. The reverse switch eliminates the need to turn over the spanner when changing direction, allowing the user to complete a job faster . Set contains sizes: 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1, 1-1/16, 1-1/8, 1-1/4". Packed in roll up wallet.