General description This Vaunt 7 piece auger drill bit set includes sizes ranging from 10mm to 25mm, making it ideal for drilling in softwood and most hardwoods. Its design is perfect for accessing tight spaces, and it offers excellent value for money. Technical specifications Sizes: 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 25mm Length: 235mm Shank type: Universal hex shank Usage Designed for fast and clean drilling in softwood and hardwood.