The Impact GOLD 14 Pc. Titanium Drill Bit Set (B-65399) offers an assortment of \u00BC\u201D hex shank bits for drilling clean and accurate holes in metal, wood and plastic. With the Titanium Nitride (TiN) coating, these bits are engineered to last 2.5X longer than non-coated bits. The 135-degree split-point geometry is built for fast starts and reduced \u201Cwalking\u201D. The bits are impact-rated and for use in \u00BC\u201D hex impact drivers (sold separately). They are ideal for drilling holes in ferrous metal, wood, plastic, non-ferrous metal, cast iron and stainless steel.\n\n--Titanium nitride (TiN) coating lasts 2.5x longer than non-coated bits\n--135 degree split point geometry for faster starts and reduced walking\n--Impact rated: For use in 1/4 inches hex impact drivers\n--For drilling holes in ferrous metal, wood, plastic, non-ferrous metal, cast iron and stainless steel