Independent controlled testing has proved that the Alpha GOLD SERIES drills outperform other drills on the market by up to 30%. Made to the highest standard used across all industries the drill bits are regarded as " as good" or "better" than any other drill bit currently on the market Features / Benefits: Titanium nitride coating reduces heat and increases lubricity for extended life and faster drilling. 135° split point cuts faster and reduces wandering. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person and Bolt and Nut Australia is not responsible for any loss claim or damages arising therefrom.