Wiseman Threading Tools Taper Lead Metric HSS Tap Right Hand - M40x3Wiseman Threading Tools Taper Lead Metric HSS Tap, Right Hand M40x3 When you need clean, reliable internal threads in metal, this Wiseman tapping tool is built for precision and lasting performance. The high speed steel (HSS) core is ground for a sharp, consistent cut, while the taper lead design spreads cutting forces across a wider entry area. That means easier alignment, smoother starting turns, and reduced risk of cross threading or chatter as you