"Century Drill & Tool Cobalt Drill Pod Set 1/16"" To 1/2"" By 64Ths, 29-Piece" (26929)

• Made from M35 steel with 5% cobalt, Century’s 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
• Package Weight: 2.7 pounds

Drill Bits Cobalt. Cobalt Drills 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 Pressure, Will 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. Aerospace Naps 907-J Specifications. 12X Life Rating, Comparison To The Average 118 Degree Point High Speed Steel Drill.