About this item

·【Multifuctional Countersink Systerm】 - This 1/4” hex shank counter sink drill bit set includes a drill body with depth stop, 4 pcs countersink replacement cores, a chamfering tool, an edge trimming ring, an extra depth stop ring.

·【Ball Bearing Depth-Stop for Scrach-free】- Engineered with an adjustable depth stop, the KEENTECH countersink is versatile for both flush and concealed screw applications. Countersink depth can be precisely adjusted by the height of the built-in hex screw. The built-in ball bearing ensures a mar- and burn-free finish, removing the need for any secondary polishing.

·【Dual-Countersink Drill Set】- Each countersink drill bit is equipped with two drilling diameters of 10mm and 8mm, enabling dual-head drilling. Meanwhile, the countersink drill set includes four specifications of twist drill bits: 2.8mm, 3.2mm, 3.5mm, and 4.0mm. The versatile and comprehensive combination of drilling diameters ensures that this set is suitable for #4 to #10 woodworking screws, accommodating most commonly used woodworking screws on the market.

·【Chamfer and Edge Trimming Tool】- This set also includes tools for chamfering and deburring, making it well-suited for light to medium metalworking tasks in DIY projects. By eliminating the need for separate specialized tools, it significantly reduces the number of instruments you need to carry for your woodworking and metalworking tasks, offering exceptional convenience for everyday use.

·【M2 High-Speed Steel Drill Bits】Get clean, precise holes in any wood with our High-Speed Steel (HSS) countersink drill bits. Engineered for durability, they resist heat and wear, staying sharper longer—even through tough hardwoods and accidental nail strikes. Their flexible strength prevents breakage, saving you time and money on replacements. Perfect for pros and DIYers who demand smooth results and reliable performance.