Multi-Angle Adjustment: Our angle drill guide supports 45°, 60°, 75°, and 90° angle adjustments for diagonal, horizontal, and vertical drilling. Flexible angle settings ensure precise hole positioning, enhancing work efficiency Precision Drilling: High-strength chuck with a clamping range from 0.06 in to 0.5 in, accommodating various drill bit sizes. Our drill guide features a spring-loaded design for precise depth control, allowing easy 3.94 in height adjustments Easy Operation: Our drill guide jig is equipped with an adjustable limiter for consistent depth on repeat drilling tasks. The V-groove base securely holds cylindrical, square, and other shaped workpieces for stable, accurate drilling Aluminum Alloy with Laser Markings: The portable drill guide is built from high-strength aluminum alloy for long-term durability. It features clear laser-etched scales for accurate alignment, ensuring consistent precision over long-term use Versatile Applications: This drilling guide is suitable for a variety of wood shapes, including boards, square timber, and cylindrical pieces. It is ideal for building bookshelves, tables, desks, furniture repairs, and creative DIY projects