![]() ![]() ![]() 800☌.Ĭolour: Violet Grey Coefficient of friction against steel: 0.4Įxcellent for tapping: All General Steels Unalloyed Titanium Unalloyed Nickel Unalloyed Copper and Unalloyed Aluminium In our case, the correct tap drill would be the closest to 3.4 mm from below, and that is the 3.3 mm or 0.13-inch tap drill. ![]() 3,000 HV and is temperature resistant up to approx. A rule of thumb is that the right tap drill is around 85 for coarse threads and 90 for fine threads which feature a higher number of threads per axial distance. Recommended for: Forming Threads in materials with at least 10% elongationĬoating: TiAlN (Titanium Aluminium Nitride) - This is a special coating for machining abrasive materials such as Grey cast iron, Al-alloys with silicon, fibre reinforced plastics, etc., or machining under high temperatures, such as insufficient coolant or high speeds> 600m/min. ![]()
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