Machine taps for ISO metric threads M 4

For blind holes with thread depth more than 2 x d. Free-cutting execution due to special relief, short tapping part and cylindrical reduced thread. chip removal out of the hole towards the shank. For tapping in strong, stainless, noncorrosive and heat-resistant materials and tool steels. this type of tap tends to stick when used in materials with less strength. in this case type N is preferable. Thanks to the TICN-coating highly wear-resistant, gaining a very long tool life.