Features 1、Made of high quality high speed steel with heat treatment, it is sturdy and durable. 2、Drilling and tapping are combined together, one-step process, greatly save process steps and time, improve working efficiency. 3、With 15mm available length,the drill bit is suitable for many works. 4、Universal hex handle, high strength and hardness. 5、Suitable for soft tapping metal, aluminum, iron. Specification Features: 1. Made of high quality high speed steel with heat treatment, it is sturdy and durable. 2. Drilling and tapping are combined together, one-step process, greatly save process steps and time, improve working efficiency. 3. With 15mm available length,the drill bit is suitable for many works. 4. Universal hex handle, high strength and hardness. 5. Suitable for soft tapping metal, aluminum, iron. Specification: Condition: 100% Brand New Item Type: Hex Shank Tap Thread Diameter: 0.5mm Material: High Speed Steel Useful Length: Approx. 15mm / 0.6in Handle Diameter: 6.35mm / 0.3in Specifications: M3, M4, M5, M6, M8, M10 System: Metric Through Hole / Blind Hole: Through Hole Function: Internal Chip Removal Scope of Application: Machine Coating: Type A: Silver Coated, Type B: Ti Coated, Type C: Blue Coated, Type D: Bronze Coated Package List: 6 x Hex Shank Tap Package List