Features Regulable Diameter Versatility: Adjust the diameter from 45 to 130 mm, allowing you to cut holes of various sizes with one tool, saving money, labor, and storage space Fine and Clean Cutting: Equipped with 3 specially designed tooth blades for smooth and precise cuts through plasterboard and cork, ensuring a professional finish without burrs User-Friendly Design: Simplify your drilling process with easy adjustments; loosen 3 screws, set your desired diameter, and tighten to start drilling without complicated instructions Wide Compatibility: Works seamlessly with all standard electric drills and cordless screwdrivers, making it perfect for various materials like plasterboard and plywood Multi-Purpose Applications: Ideal for cutting compression board, gypsum board, and plastic; perfect for DIY projects such as woodworking and speaker hole cutting, but not suitable for glass or metal Features: 1、Regulable Diameter: This punching saw has a variety of regulable diameters from 45？130 mm. Save money, labor and space by cutting holes of different diameters with just one tool. 2、Fine and Clean Cutting: Three of 3 tooth blades can easily saw through plasterboard and cork board with its special straight teeth to ensure fine and clean cutting. Triple blade design, straight round effect, unhindered cutting, no burr. 3、Easy to Use: No complicated instructions for use. Loosen the 3 screws in the middle, then adjust the diameter of the hole you want, and finally tighten these 3 screws to start drilling. 4、Compatible Tools: All standard electric drills and cordless screwdrivers can accept 10mm hole saws. The cordless screwdriver is only suitable for drilling holes in plasterboard, while the electric drill can be used for plasterboard, oriented strand board, cork, plywood, etc. 5、Multi Purpose: This hole saw cutter is designed for cutting compression board, gypsum board, plastic, etc. Suitable for home projects. Widely used for woodworking hole cutting, plastic board hole cutting, DIY speaker hole cutting, etc., but not for glass and metal. Specification: Item Type: Regulable Punching Saw Material: ABS, 45 steel Opening Diameter: Approx. 45-130mm / 1.77-5.12in Package List: 1 x Dust Cover 1 x Regulable Hole Saw 1 x Connecting Rod 1 x Center Drill 1 x Hex Socket Wrench 1 x Storage Box (With Fixing Screws) Note: betweendiv>1. Manual measurement may have error. Please make sure you don't mind before ordering.between/div>betweendiv>2. Due to differences in different monitors, the picture may not reflect the actual color of the item. Thank you!between/div> Package List 1 x Dust Cover 1 x Regulable Hole Saw 1 x Connecting Rod 1 x Center Drill 1 x Hex Socket Wrench 1 x Storage Box (With Fixing Screws)