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+1 (217) 579-8045Union Butterfield Spiral Point Machine Tap, High Performance, Series: 1629AP Applix HMD, Measurement System: Imperial, UNC Thread Standard, #8-32 Thread, Plug Chamfer, 3 Flutes, HSS, TiAlN Coated, Class of Fit: 2B, Right Hand Cutting Direction, 0.512 in Thread Length, 2.48 in Overall Length, 0.168 in Shank Diameter, Steel, Stainless Steel, Cast Iron, Titanium, Nickel and Copper Material ApplicationDesigned for through hole tapping materials with a hardness of >38 RcPremium substrate provides superior abrasion resistance and edge strengthTiAlN top coating lowers the coefficient of friction, improves thread quality, affords higher operating speeds and longer tool life