Innovative double cutting construction: The countersink drill set features a double-edged design to effectively avoid chattering and create a smooth, precise . Compared to single-edged drills, it cuts faster and is therefore ideal for lowering larger or holes. 12-piece countersunk drill wood set: the countersink drill wood contains 5 countersinks (#4, #6, #8, #10, #12), five interchangeable drills Efficient and clean drilling: The blade and 90 degree countersink angle quickly create clean pilot holes and a firm fit of the screws. This integrated drill has drilling, countersinking and reaming functions, significantly improving work efficiency. and robust: The drill is made of high-quality, titanium-coated high-speed steel and is therefore ideal for drilling soft and hardwood. (Note: Not recommended for continuous use in hardwood.) Versatile: The countersunk drill set has a 1/4 inch hex shank and is therefore compatible with a variety of tools, including impact drills, hand drills, bench drills and drills. The adjustable depth adjustment allows you to work with different wood thicknesses. Color: Black Material: Metal Package Contents: 5 x countersinks. 5 x interchangeable drills. 1*wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.