Crafted from high-speed steel, this tap drilling kit ensures sharpness, rapid execution, and long-lasting strength. The alloy treatment enhances cutting performance, wear-resistance, and hardness for extended service life. This composite tap drilling tool combines drilling and tapping functions in one. The spiral tap design efficiently removes chips for a smooth tapping experience. Ideal for creating new threads while drilling holes simultaneously. Featuring a hexagonal handle with a tapered end, this tap set prevents over-tapping and damage to threads. The back taper exceeds the tap length to avoid over-drilling. Enjoy accurate results with machine tapping eliminating human error. With 6 taps of varying sizes included in this kit, you can tackle a wide range of threading tasks efficiently. From small to large threads, this set offers versatility and convenience for various applications. The high-speed steel construction combined with alloy treatment significantly improves cutting performance. Experience superior wear resistance, hardness, and efficiency when using these taps for your drilling and threading needs. Item Name: Drill Bit Material: Steel Features: Rustproof, High Durability, Long Lasting Size Details: Size Short Length: 5.4cm-6cm/2.13"-2.36" (Approx.) Size Long Length: 6.4cm-7cm/2.52"-2.76" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 6 x Drill Bits