Kincrome 8 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: 8, 10, 12, 13, 14, 17, 18, 19mm. Packed in roll up wallet.