- Adjustable Diameter: This versatile hole saw set features an adjustable punching range of 45-130 mm (1.8-5 inches), allowing you to cut holes of various sizes with a single tool, enhancing work efficiency. - Effective Chip Collection: Designed for ceiling drilling, this tool efficiently collects most chips and debris, minimizing cleanup while offering high hardness, toughness, cut resistance, and wear resistance. - Streamlined Cutting: The 3 flute hole cutter easily penetrates drywall and soft wood, with straight serrations that deliver clean and precise cuts. Experience smoother performance without burrs. - Versatile Applications: Ideal for woodworking and home improvement projects, this adjustable hole saw works well on wood, plywood, plastic, plaster, acrylic board, thin metal, and more. - Practical Use Cases: - Perfect for installing recessed lighting by effortlessly creating precise holes in ceilings. - Great for plumbing and electrical work, allowing for easy access to wall cavities without damaging surrounding material. - Useful in craft projects, enabling clean and accurate cuts in various materials for customized designs.