Milwaukee SHOCKWAVE Impact duty titanium drill bits with RED HELIX are engineered for impacts and drills. Designed with a variable helix with an aggressive 35deg helix angle which ends at 15deg, the impact duty titanium drill bits with RED HELIX provide Rapid Chip Removal to limit heat buildup to Stay Sharper Longer. The 135deg split point tip delivers a precision start and prevents walking for fast, accurate holes. Titanium coating can be used in all drilling applications to give you up to 3X life vs. Black Oxide Drill Bits.