Premium Countersink Drill Bit Set This countersink and chamfer deburring tool set is designed for , clean hole finishing in a wide range of materials. Ideal for stainless steel, copper, wood, plastic and other common metals, it delivers smooth, burr‑free results for professional and DIY projects. Quick Change Hex Shank Design Each countersink bit features a standard quick change hex shank that fits most electric drills, cordless drills and impact drivers. The hex shank provides a secure, non‑slip grip and allows fast bit changes, improving work efficiency on repetitive tasks. Chamfering and Deburring Function Specially ground cutting edges provide efficient chamfering and deburring around drilled holes. The bits remove sharp edges and burrs quickly, creating a smooth, neat countersink to seat screws and fasteners flush with the surface. Color: Yellow & Black Material: Metal Package Contents: 1*Hexagonal trimming blade 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.