Features and Benefits:

• Constructed of M-42 8% cobalt  high speed steel for super abrasive resistance in tough metals
• Heavy duty spiral flute design produces faster chip ejection
• Shorter cutting lips reduce torque when drilling in high tensile strength materials
• 135 degree split point begins drilling immediately, minimizing bit walk

5/16", Cobalt Bit, 135 Degree Split Point To Minimize Walk, 8% Cobalt For Higher Heat & Abrasion Resistance, Heavy Duty Web Construction For Strength & Durability, For Tough Metal Drilling, Including Heavy Duty Abrasive, Alloy Metal Drilling On Hardened Steel, Cast Iron & Stainless Steel.