High quality--It is designed with standard thread distance, and it is clear and tidy without burr. Multiple purpose--There are total 10 pieces of taps in 10 different sizes from M1 to M3.5 for tapping various threads. to use--It is t use with high speed steel with high wear and heat resistant. Professional use--These machine hand taps are used for machining nuts or other common thread on the machine. Smooth tapping experience--You will have a smooth tapping experience with With these machine hand taps., Weight: 0.0440924524 pounds, Manufacturer: Walfront