1. Durable Material: Our adjustable hole saw is made of sturdy, wearresistant alloy material, ensuring longlasting performance. Ideal for furniture and woodworking, these adjustable punch saws are built to endure. 2. Multipurpose: Our adjustable hole saw has a wide range of applications, with a cutting thickness of 30mm. It is suitable for various materials such as solid wood, plasterboard, aluminumplastic board, and plastic board. Not suitable for metal, slate, tile, or glass. Compatible with standard electric drills (clamping distance > 10mm), it easily integrates into your existing tool collection. 3. Adjustable Diameter: The hole saw offers an adjustable range of 45 to 130mm to meet different drilling needs. With a cutting thickness of 30mm, this single tool allows you to effortlessly cut holes of various diameters, making it for all drilling requirements. 4. Clear Scale NonSlip Design: Featuring a precise, stamped scale for accurate measurements and enhanced wear resistance, our adjustable hole saw ensures clarity and durability. The universal triangular shank design effectively prevents slipping during drilling.