Premium Aluminum Construction: Crafted from high-quality aluminum, this square hole drill bit adapter boasts exceptional wear resistance and hardness. Its robust design ensures stable performance during woodworking tasks, enhancing the overall efficiency and precision of your drilling operations. Effortless Installation and Removal: Designed for user convenience, this adapter features a straightforward installation process. Users can easily attach or detach the tool following simple steps, making it a hassle-free addition to your woodworking toolkit for both professionals and hobbyists. Optimal Drilling Assistance: As an essential tool for woodworking, this adapter plays a crucial role in facilitating precise and smooth drilling operations. It supports the drill bit effectively, ensuring accurate results and a seamless drilling experience in various wood types. Secure Fixing Bracket: The adapter includes a fixing bracket that supports the clamping part of handheld electric drills. With a width of approximately 20mm (0.79 inch) and a diameter range of 38mm to 43mm (1.50 inch to 1.69 inch), it is vital to verify the compatibility with your drill before use. Versatile Compatibility: This square hole drill adapter is specifically designed for use with handheld drills. It is important to note that it is not compatible with tabletop or rechargeable drills, ensuring users select the appropriate tool for their specific drilling needs. Color: As shown Material: Metal Package Contents: 1 x Fixing frame 2 x Wrench 3 x Drill bit 2 x Fixing ring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.