Product Details
Cobalt drills are specifically engineered to penetrate extremely hard metals, including stainless steel, without the need for a center punch. They feature Century 135 degree quick cut points that are self-centering, allowing for faster penetration with reduced pressure and preventing any wandering at the starting surface. These drills are exceptionally heat resistant and should be operated in power units with a maximum RPM speed of 1,500 or more for optimal efficiency. They meet Aerospace NAS 907-J specifications, ensuring high standards of quality and performance.
