Features Durable Carbon Steel Construction: The drill bit is crafted from high-quality carbon steel, while the countersink is made from 45# steel, ensuring a long-lasting and reliable performance Features: 1、The product is made of steel, with a firm structure and light weight. 2、Suitable for opening the diameter is 5/6/7/8/9/10mm. 3、 positioning makes your opening easy and . 4、Can effectively improve the speed and quality of woodworking s. 5、Centerlines ensure accurate alignment when drilling into various s Specification: Feature: The product is made of steel, with a firm structure and light weight. Suitable for opening the diameter is 5/6/7/8/9/10mm. positioning makes your opening easy and . Can effectively improve the speed and quality of woodworking s. Centerlines ensure accurate alignment when drilling into various s Specification: Material: Steel, Aluminium Alloy Color: Red; Yellow Suitable open hole diameter: 5/6/7/8/9/10mm Package list: 1 * Open hole fixed base 6 * Steel sleeve(5/6/7/8/9/10mm, each * 1) Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. Package List