Type 130-AG 1/2" Reduced Shank Premium, 3-Flats on Shank  Heavy-Duty, 135˚ Split Point • Special Hi-Molybdenum   tool steel. • One piece solid construction. • Sizes greater than 1",118º split pt. • Use in work hardening grades    of stainless steel and other   hard metal drilling applications. Norseman - Type 130-AG 1/2" Reduced Shank Premium 3-Flats on Shank Heavy-Duty 135˚ Split Point Drill Bit