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. Note: 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.