Dewin - Thread Screw Tapping Tool Taps Set, 6pcs Thread M3-M10 Titaniums Coated hss Drill and Tap Bits 1/4' Hex Shank Tapping Drill Bit Set

●【6 Type Sizes】There are 6 different tap sizes from M3 to M10 for tapping different threads. ●【Steel Material】These drill tap bits set is made of high speed steel and finished with nitriding for high hardness and rust resistance. The centre drill bit have sufficient bending strength and wear resistance. ●【Drilling Function】These tap drill set feature a helical flute design for better chip evacuation. They are taps with drilling capabilities for drilling and cutting new threads while you will have a smooth tapping experience. ●【High Efficiency】These HSS drill and tap bits are great tools used to create screw threads, to cut or form the female portion of the mating pair, generally more accurate because human error is eliminated. They are used on a machine to do the tapping, such as a lathe. ●【Widely Application】These small drill bit set are used on a machine to do the tapping, generally more accurate because human error is eliminated. These tap drill bit set suitable for drilling,