LOK-ONWorld Class Socket SetsKincrome LOK-ON Sockets, Sets and Accessories have been engineered beyond world-class benchmarks, exceeding all international torque and lifetime standards. Offering unique patented features such as the LOK-ON Socket’s ability to loosen up to 85% rounded/damaged fasteners, the LOK-ON range has been developed with both function and style in mind. Each component within the LOK-ON range includes features above and beyond the market’s expectation, setting a new benchmark for the professional quality tool industry.SpecificationsSize: 17mmFinish: StandardMaterial: Chrome Vanadium SteelStandard: DIN 475, 3121 & 3120