Features: Precision ground on all surfaces for accurate wood drilling. Bits are designed for accurate position and fast penetration. Made from high-carbon steel of special heat-treatment, these bits have a high hardness. For cutting straight or angled holes in hardwood, softwood, end grain, cross grain & laminated panels. Different from other woodworking drill, the product head with a special design, the two edges plus two edges, positioning precision, cutting effort. The body is small, but strong compatibility, high practicability. Specifications: Material: steel Color: silver Size: 80mm Package included: 1 x Drill Bits set Notes: 1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2.Due to the manual measurement and different measurement methods, please allow 1-3cm deviation.Thanks!