brad point drill bit sets are premium utility tools that can meet your daily life and use needs. Industrial quality for smooth accurate drilling [HIGH QUALITY MATERIALS] : The point drill bits are made of high quality carbon steel material, which ensures the durability, long service life, corrosion resistance and wear resistance of the product [PREMIUM PERFORMANCE] : Brad Point starts bit drilling on center, eliminates the need for a center punch. Diameter: 4mm,5mm,6mm,7mm,8mm,10mm,12mm. Length: approx. 300mm(11.81")[WIDE APPLICATION] : These specially engineered drill bits are specifically made to reduce chipping and splintering. Easily drill into Natural Woods like Pine, Maple, Cedar, Oak, Ash, and More. These also work will on all types of engineered woods