【Precision Drilling】 Right-handed spiral tip ensures accurate positioning and smooth drilling, preventing blockages and delivering straight holes. 【Efficient Chip Removal】 Wide grooves effectively remove chips quickly, maintaining drilling continuity and preventing clogging. 【Versatile Application】 Suitable for various wood materials, including ordinary wood boards, MDF, plywood, rosewood, particle board, and solid wood. 【Powerful Grip】 Hexagonal anti-slip handle provides high torque and prevents slipping during operation. 【Compatible Equipment】 Designed for use with hand drills, bench drills, and other drilling equipment. Specifications: Material: High-quality steel Function: Drilling holes in various wood materials Size: 22 x 350mm Note: A power drill of 800W or above is required. Deep-hole drilling with a twist drill encounters high resistance; low-power drills may get stuck.