How many kinds of steel are used in high quality screwdriver?
S2 tool steel.Carbon (C), silicon (Si), manganese (Mn), chromium (Cr), molybdenum (Mo), vanadium (V) alloy. Excellent shock resistant tool steel, the strength and toughness of steel with excellent, high-end tools, performance is better than that of Cr Mo steel. Such as screwdrivers, six corners wrenches, etc..In carbon steel high carbon steel - Cr-V- Cr-Mo- S2- - S2 S2 with the titanium oxide film and diamond coating, such as the use of the wiehahn high-grade diamond coating can increase the friction, without strong will not slip the screws.
Chrome vanadium steel: Cr-VChrome vanadium is added chromium (Cr) and vanadium (V) alloy tool steel alloy elements, the comprehensive ability of its strength and toughness is better than that of carbon steel, ideal materials as quality tools. Such as wrenches, sockets, screwdrivers, etc.
Carbon steel: CSAny of various steels that contain less than 2.11% of the mass of carbon but contain no alloying elements. Sometimes referred to as plain carbon steel or carbon steel. The higher the carbon content, the higher the strength, the lower the plasticity (toughness). 45# carbon steel is a quality carbon steel (low in phosphorus and sulfur), widely used in general tool materials.
