6pcs Drill Bit Set Kit HSS Tap Drill Bit Metric Thread Tap Countersink Tap Hammer Drill Bits (M3-M10) for Hex Head Thread Titanium <p>[M3-M10 Drill Tap]---Drill tap suit M3x0.5 Tap, M4x0.7 Tap, M5x0.8 Tap, M6x1 Tap, M8x1.25 Tap, M10x1.5 Tap. Tap drill bit, 6 sizes set, which perfectly meet your different needs. A sharp, hardened drill bit induction, slightly induced wear-resistant, to ensure the puncture speed, improve work efficiency</p> <p>[HSS Material]--- tap drill bit for screwdriver HSS metal drill bits (titanium coated), tap drill bit Made of high speed steel (HSS), high hardness and rust resistance for a long service life. 6 PCS metal drill bit, suitable for drilling wood, plastic, thin copper, aluminum and other soft metals (5-6 mm), not for hard materials (e.g., steel sheet)</p> <p>[Improve work efficiency]--- Countersink Tap hammer drill bits, The complete drilling, tapping, deburring and milling in one operation save processing steps and time costs, improve working efficiency.These taps are used on a machine to perform tapping, usually more accurate as human error is eliminated</p> <p>[Smooth Edges and Precise Cutting]--- These are metric thread taps with drilling function, used to drill a hole and cut new threads at the same time, you will have a smooth tapping experience. When you drill a hole, you need to inject water at the same time to cool the drill bit. This will help you increase the value of the drills.</p> <p>[For Wood, Plastic and Thin Aluminum]--- M4 Tap Drill Bit Design allows drilling, tapping, deburring and countersinking in wood, plastic, thin aluminum, copper and other soft metals (5-6mm), not for hard materials. Note: If you cannot cool the drill bit when drilling holes, the drilling speed should not be too high and you should not drill too frequently.</p>