Chrome-Vanadium Steel Strong rack and pinion made of hardened steel, allowing small, only 5º jump key. Key flat – ring spanner can be used to replace professional quick-rattle, and also has a much smaller size – allowing available for tight spaces. Wide range of applications, the key allows you to work with threaded connections. All eyes ratchet flat keys – wrenches are equipped with a tip Surface Drive, which allows loosening screws with damaged (circular) head. The keys are made of chrome-vanadium steel, satin finish Wrenches-drawn ratchet 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 mm