Feature: 1. Spiral Flute Design: This is a tap drill with a spiral flute design, which has a better chip removal effect. 2. Chamfer in One : Combination of hole tapping and chamfering, convenient operation, hand drill, bench drill, and hexagonal chuck tapping machine are optional. 3. Processing: The tap can process wood, plastic, aluminum, tin alloy, Mg alloy, and the thickness of the workpiece is less than 5mm. 4. High Speed Steel: Titanium plating combination drill taps are made of high speed steel, which can ensure sharpness, fast execution and maintain strength and efficiency. 5. Improve Work Efficiency: The drill bit can quickly complete the work, which greatly saves processing steps and time costs, and improves work efficiency. Specification: Item Type: Tap Drill Bits Material: High Speed Steel Surface Treatment: Titanium Plating Unit: Metric Package List: 1 x Tap Bit