Cobalt Drill Bit Set 1/16″-1/2″ HSS Co5% M35 Jobber Twist Metalworking Drill Bit
✅Drill Bits Size: 1/16″ -1/2″ (Diameter) ✅Quantity/Package: 10Pcs/5Pcs in a Package. ✅Material: HSS Cobalt High Speed Steel is the best material for improving performance and drilling life when drilling and cutting harder matels, such as stainless steel and other metal. ✅Surface Treatment: The Gold Oxide surface treatment strongthen the hardness of surface by oxiding treatment on the cobalt steel, to ensure the long drilling life and better drilling performance. ✅Unique Function: Cobalt drill bits are more expensive than other drill bits, but if you regular drilling through metal, they are a good investment since they tend to last longer. ✅135 Deg. Split Point: No center punch is needed– the aggrevsive 135 Deg.