Shockwave™ Red Helix™ Drill Bit Set, 29 Pieces, TitaniumThe Quad Edge tip delivers a precision start and four cutting edges to create smaller chips for faster removal and less heat for longer bit life The Variable Helix design includes an aggressive 35 helical angle, which ends at 15, these titanium drill bits with Red Helix provide Rapid Chip Removal limiting heat buildup to Stay Sharper Longer The bits also feature an internal Enhanced Taper Web that greatly increases their strength, reducing premature