Chrome Vanadium steel combination spanner with 72-tooth, WallDrive®, ratchet ring. Ultra-smooth ratchet action requires only 5° rotation to pick up the next tooth. Ideal for awkward applications. Features & Benefits:Chrome Vanadium steel combination ratchet spanner with 72-tooth, WallDrive®, ratchet ring.72-Tooth ultra-smooth ratchet action.Requires only 5° rotation to pick up the next ratchet tooth.Ideal for awkward applications.Lifetime guarantee*.Model No. RCW12 Specifications: Model No RCW12 Brand: Premier Length: 177mm Nett Weight: 0.08kg Set Model No(s): AK63907 - 7pc Set (includes 8-19mm), AK63912 - 16pc Set (includes 8-19mm, three square drive adaptors and one bit holder) Size: 12mm