Feature: 1. Adjustable Design: Adjustable hole opener set, you can easily adjust the size of the opening hole for fast drilling, which is convenient and practical. 2. Aluminum Alloy: The hole opener is made of excellent aluminum alloy material, rustproof and corrosion resistant, and has a long service life. 3. Accurate Scales: The multifunctional hole saw has accurate scales, which is clear and intuitive, making hole drilling more efficient and accurate. 4. Other Accessories: With unique bit, bearing and pivot pin, equipped with grip and wrench, this hole saw set is suitable for a wide range of applications. 5. Applicable Scenes: Widely used in the hole opening of integrated ceilings such as planks, gypsum boards, and aluminum gussets (not for metal). Specification: Item Type: Adjustable Hole Opener Material: Aluminum Alloy, Iron Colour: Black Application: Widely used in the drilling operation of the integrated ceiling of thick wood, gypsum board, aluminum gusset and other plates (can not drill metal), convenient and practical. . Package List: 1 x Hole Opener1 x Milling Cutter1 x Drill Bit2 x Non Slip Grip1 x Hex Wrench1 x Small Handle1 x Screw1 x Storage Plastic Box