M2.5 x .40 Tap, design: 3 flute Plug style with TiN coating made to ISO 2 (6H) standards thread pitch of 0.40mm threading length approximate 10.mm / .400”), Shank 3.0mm / 0.118" made from hardened high speed steel our taps are designed for production taping in Automatic screw machines, Tappers, CNC lathes and CNC mills. 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. Overall length is 40mm / 1.60" lengths can vary slightly between batches. Price listed is for 1 to 9 pieces discounts start at ten pieces.