5Pcs Countersink Drill Bit Set - This countersink bit includes the most commonly used sizes (1/4 inch, 3/8 inch, 1/2 inch, 5/8 inch, and 3/4 inch), catering to a wide range of drilling needs.Making this set a versatile addition to any tool collection. Superior Material - Crafted from high-quality materials,The robust construction ensures that each countersink bit maintains its sharpness and resistance to wear and tear, ensuring smoother drilling and extended bit life.making it a reliable choice for drilling into metal and wood. Profound processing, achieve exact countersink holes and allows the screw heads to be flush and even with the surface of the material being utilized. Five blade design, which can reduce vibration and prolong life, achieve smoother drilling. Universal Compatibility & Slip-Resistance - Featuring a 1/4 inch hex shank, these countersink drill bit are designed for a perfect fit in both handheld and stationary drills, offering a secure grip that prevents slipping, ensuring consistent and precise drilling across various materials. Versatile Application - Crafted for versatility, these countersink bit for metal are perfect for creating flawless countersink holes in a variety of materials, including metals, plywood, softwoods, hardwoods, fiberglass plastics, and mild steel, ensuring a perfect finish for every project. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:As Shown Material:Metal Package Contents: 5 * Chamfering tool 1 * Bracket