Combo Drill & Countersink: #3, 1/4" Body Dia, 1180, Cobalt MPN:CS37003

This Combo Drill and Countersink features a #3 size drill bit made of high-quality cobalt steel which is twice as hard as conventional high-speed steel, ensuring durability and heat resistance when performing precise hole drilling operations in various surfaces. With an overall body diameter of 1/4 inches, it provides exceptional performance ideal for woodworking, metalworking, and general construction applications where creating smooth countersinks is essential without having to switch tools. The combination set saves time by eliminating the need to change bits when working on different projects or materials, streamlining operations in industries such as aviation, aerospace, automotive manufacturing, machining, fabrication shops among others where superior precision and efficiency are critical. Furthermore, the cobalt composition makes it suitable for drilling into hardened steel and stainless steel components while maintaining accurate hole placement, reducing chatter, and preventing overheating when working on heavy-duty jobs, making this combo set an essential addition to any tool collection.