M.9 & 90UNM Tap; Spiral two flute Plug pitch .225mm length of cut approx. 4mm with TiN coating.160; To DIN Standards Shank 0.060" made from hardened high speed steel our taps are designed for pulling the chips away from the cutting edge while tapping blind or through holes suitable for production tapping of softer materials such as brass, copper, aluminum, plastic or similar. The coating used TiN (Titanium Nitride) very thin and smooth, increases tap performance and tool life. In our shop TiN coated taps typically tapped three times the number of holes. Image is representative and may not be exact item. This is a production tap for tapping in Automatic screw machines, tappers, CNC lathes and CNC mills.