Item Type: Tap Drill Bits_x000D_ Material: High Speed Steel_x000D_ Surface Treatment: Titanium Plating_x000D_ Unit: Metric 1Spiral Flute Design: This is a tap drill with a spiral flute design, which has a better chip removal effect. 2Chamfer in One : Combination of hole tapping and chamfering, convenient operation, hand drill, bench drill, and hexagonal chuck tapping machine are optional. 3Processing: The tap can process wood, plastic, aluminum, tin alloy, Mg alloy, and the thickness of the workpiece is less than 5mm. 4High Speed Steel: Titanium plating combination drill taps are made of high speed steel, which can ensure sharpness, fast execution and maintain strength and efficiency. 5Improve Work Efficiency: The drill bit can quickly complete the work, which greatly saves processing steps and time costs, and improves work efficiency.1 x Tap Bit