Ausla 6-Piece HSS Drill and Tap Bit Set, M3-M10 Metric Thread, Titanium Coated with 1/4 Inch Hex Shank

Drill and tap bit is made of high speed steel and finished with nitriding for high hardness and rust resistance. More Have sufficient bending strength and wear resistance. [6 Type Sizes] There are a total of 6 pieces of different size taps, from M3 to M10, which can be used to tap a variety of threads. Thread (metric system): Shank:1/4 inch (6.35mm) hex shank. Metric : M3x0.5mm, M4x0.7mm, M5x0.8mm, M6x1mm, M8x1.25mm, M10x1.5mm. [Drilling Function] These 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, a good tool for making threads, cutting or forming a concave part of a mating pair. [High Efficiency] The taps are designed with spiral grooves, and the chip elimination process would be better. Drill tap bits increase efficiency of by allowing for drilling and tapping to be accomplished in a single pass. [High precision] 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.