6pcsDrill and Tap, Met ric Thread Tap M3 M10 Tita nium Coated HSS Drill Bits 1/4" Hex Shank Screw Taps Tool Set

【HIGH HARDNESS & RESISTANCE】---These taps are made from high sp-eed steel and finished by nitriding for high hardness and resistance 【DIFFERENT SIZES】---There are total 6 pie-ces of taps in different sizes from M3 to M10 that you can use for tapping various threads 【SPIRAL FLUTE】---Taps are designed with spiral flutes and the chip clearing process would be better 【FUNCTION】---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 【NOTICE】---These taps are used on a machine to do the tapping, generally more accurate because human error is eliminated