6pcs Set of HSS drill and tap bits made High speed steel(titanium coated) 6.35mm(1/4") used to create screw threads, cut or form the female portion mating pair

These taps are made from high speed steel and finished by nitriding for high hardness and rust resistance There are total 6 pieces of taps in different sizes from M3 to M10 that you can use for tapping various threads Taps are designed with spiral flutes and the chip clearing process would be better They are taps with drilling function, used to drill a hole and cut new threads at the same time, you will have a smooth tapping experience with them These taps are used on a machine to do the tapping, generally more accurate because human error is eliminated