The store is for you! Professional craftsmanship. Thick blades can be sharpened multiple times. Easily store between jobs. Help you quickly, very suitable for making clean flat bottom wood holes. Various package combinations, the specific delivery standard is: the first main picture. Made of cemented carbide, with long-lasting durability. Under the guidance of the circular edge, drill all arcs of the arc in all directions; ensure rapid and correct waste removal, ensure real, accurate and clean flat bottom holes, and ensure your work is efficient. The PTFE coating of the valve body prevents the adhesion of chips, resin and residue. Provides visibility and stability during operation. The central gear of each drill bit ensures accurate drilling and prevents walking and swinging during operation. The sun gear design can perfectly form a round and accurate hole. Suitable for drill presses, hammer drills, bench drills, vertical drills, portable electric drills, drill presses and mobile