Made from M35 steel with 5% cobalt, Centurys Cobalt drill bits are designed to cut through extremely hard metals, including stainless steel
No center punch needed: Century 135-degree quick-cut points are self-centering and penetrate faster with less pressurewill not walk or wander at the starting surface
Extremely heat resistant, must be used and operated in power units that have a RPM speed of 1,500 or more for maximum efficiency
Made in the U.S.A.