Milwaukee SHOCKWAVEâ„¢ Impact Duty Titanium Drill Bits with RED HELIXâ„¢ are engineered for impacts and drills. Designed with a Variable Helix â„¢ with an aggressive 35 Helix Angle which ends at 15 , the Impact Duty Titanium Drill bits with RED HELIXâ„¢ provide Rapid Chip Removalâ„¢ to limit heat buildup to Stay Sharper Longerâ„¢. The 135 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 Bitsâ„¢.