Drill America 63/64in Cobalt Reduced Shank Drill Bit

63/64" Cobalt Drill Bit with Reduced Shank

This cobalt steel drill bit features a 63/64 inch diameter and a 1/2 inch reduced shank for use with standard chucks. The bronze oxide surface treatment on the flutes enhances wear resistance and chip evacuation. It is built for drilling tough materials such as stainless steel and high-strength alloys where standard high-speed steel wears quickly. Machinists and maintenance technicians gain a durable option for heavy-duty metalworking tasks.

3-Inch Flute Length for Deep Holes

The flute length of 3 inches provides ample reach for deeper drilling operations while the 6-inch overall length ensures rigidity. Cobalt construction maintains hardness at elevated temperatures, allowing sustained cutting speeds in abrasive alloys. The reduced shank limits compatibility to chucks accommodating 1/2 inch or larger, so it is not suited for smaller drill presses or hand drills with tighter capacity. Users needing larger diameters or longer reach must select a different bit.