Selected from steel forging, highly toughness, resistance, wear resistance characteristics Overall heat and polishing, which have super highly corrosion.resistance Suitable for various mechanical maintenance industry, such as automobile, motorcycle repair and home maintenance, wide applications Fit for variety of screws, Nut disassembly and maintenance, smooth opening, protect screws and Nut Suitable for Nut and bolt of 6-25mm / 3-17mm, Manufacturer: Limtula