Sealey AK6319 Double Ring Ratchet/Fixed Spanner Set 7pc Extra-Long Metric. Manufactured from hardened and tempered Chrome Vanadium steel with a fully polished mirror finish. 12-Point ratchet/fixed WallDrive® ring ends. 72-Tooth ratchet requires only 5° rotation to pick up the next tooth. WallDrive® rings grip the wall, not the corners, giving up to 30% more torque. Supplied in storage tray. Specifications: Type: Spanner Set, Lifetime Warranty: Yes, Metric/Imperial: Metric, Pieces: 7.