Drill Faster Than Traditional Jobber Drills Through Tough Alloys – Self-Centering 135° Split Point For Precision Drilling- Drill Will Not Walk – Titanium Nitride Coated HSS Provides A Surface Hardness In Excess Of 80 Rockwell C Scale Protecting Cutting Edge From Abrasion And Heat – Ideal For Drilling Tough Steel Alloys, Cast Iron, Titanium, Stainless Steel, Armor Plate