[HIGH QUALITY] - 100% new and high quality. These taps are made from high speed steel and finished by nitriding for high hardness and rust resistance [USE FOR TAPPING THREADS]- There are total 6 pieces of taps in different sizes from M3 to M10 that you can use for tapping threads [SPIRAL FLUTES] - Taps are designed with spiral flutes and the chip clearing process would be better. These taps are used on a machine to do the tapping, generally more accurate because human error is eliminated [MORE EFFICIENT] - Drilling and tapping in one, one-step processing.Greatly save processing steps and time costs, improve working efficiency colour: as shown Material: High-speed steel Package Contents: 12 x Spiral Tap Drill Bit Set Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.