5/16"x4-1/2" Cobalt HSS-J/L
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.
