Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! 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 HSS materials, the metal drill bit set for steel is built to last, 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. Five Blade Design - The drill bits featuring an innovative five-blade design. This unique pattern significantly reduces vibration and removes chips efficiently, superior cutting speed and smooth finish with our counter sink drill bit set, Each countersink bit is precisely ground at an 82-degree angle, perfect for creating smooth, burr-free holes in metal and wood. 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. Material: high speed steel Color: as shown Package Contents: 5 PCS Countersink Drill Bit Set 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.