Set of 6 threaded taps, tap drill, metric thread M3 M10 with HSS titanium coating and 1/4" grooved hexagonal shank tapping bits for tapping different threads.

【High Efficiency】- This tap drill improves working efficiency by allowing drilling and tapping simultaneously.【Main Function】- This tap drill is ideal for making threads, cutting, or forming a concave part of a coupling pair.【High Quality】- This tap drill is made of high-speed steel and has a nitride surface for high hardness and rust resistance.【M3 - M10】- This tap drill comes in 6 different sizes, with 6 different tap sizes from M3 to M10 that can be used to connect a variety of threads.【High Precision】- This tap drill uses a spiral groove design that facilitates the chip removal process. These tap drills are designed for tapping, which is generally more accurate as it eliminates human error.