High Quality Chrome Vanadium Steel wrenches. 72 tooth ratchet and ultra smooth ratchet action requiring only 5 deg rotation. Includes 4pc bit holders and quick release socket adapters. Sizes: 8x9 10x11 12x13 14x15 16x18 17x19mm. Adapters: 1/4" Sq Dr x 10mm Hex 3/8" Sq Dr x 13mm Hex 1/2" Sq Dr x 19mm Hex 1/4" Hex Bit x 10mm. Supplied in a Blow Moulded storage case.