Pcs 1/4" Metric Thread Drill Bits and Taps HSS (M3-M10) High Speed Steel (Titanium Coated) - For High Hardness and Rust Resistance

GOOD DRILLING PRODUCT - These star-shaped drill bits are suitable for drilling wood, plastic, thin copper, aluminum, and other soft metals (5-6mm). They are used on a tapping machine, such as a lathe. Caution: These star-shaped drill bits are not for hard materials (e.g., sheet steel). SUITABLE - These star-shaped drill bits are used for drilling, tapping, and cutting soft metals (5-6mm), aluminum sheet (5-6mm), iron, etc. They are also used on a tapping machine, such as a lathe.

SELF-CENTERING POINT - No need for center drilling or center punching. Anti-wear: The back of the cone on the drill bit prevents over-drilling caused by damage.

MORE EFFICIENT - Drilling and tapping in one step. Quickly save processing steps and time costs, improve work efficiency. These HSS tap drills are excellent tools used to create screw threads, to cut or form the female part of the coupling pair.

HIGH QUALITY - These tap drills are made from high-speed steel and surface finished by nitriding for high hardness and rust resistance.

Features: