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+1 (217) 579-8045Union Butterfield Spiral Point Tap, Series: 1659AP Applix HMD, Measurement System: Metric, UNC, M5x0.8, Plug Chamfer, 3 Flutes, HSS, TiAlN Coated, Class of Fit: 6H, Right Hand Cutting, 15 mm Thread Length, 70 mm Overall Length, 0.194 in Shank Dia, D4 Thread LimitDesigned 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