General description Fast Progress: Sharp wood twist drill bits allow for fast and efficient drilling progress without sinking when drilling deep into wood. The 7-piece set includes 4, 5, 6, 7, 8, 10, and 12mm drill bits to meet different woodworking needs. The wood drill bits are extremely durable and stay sharp for a long time, even with frequent use, allowing for precise and consistent results. They fit perfectly with regular drill bits, enabling you to complete your woodworking projects with precision and ease. Technical specifications Sizes: 4MM, 5MM, 6MM, 7MM, 8MM, 10MM, 12MM Length: 300MM