Feature:1. ADJUSTABLE DIAMETER: This circular punch saw has multiple adjustable diameters ranging from 45130mm for a variety of drilling scenarios.2. WITH CUTTING BLADES: Equipped with 3pcs 3 tooth cutting blades, which can be used to easily saw gypsum board and cork board, etc.3. HIGH EFFICIENCY: The punching saw is equipped with a positioning drill bit to saw standard round holes, which is smooth and burr free.4. EXCELLENT MATERIAL: Made of nylon and zinc aluminum alloy material, sturdy and durable, wear resistant and can be used for a long time.5. WIDE APPLICATION: This adjustable punching saw has a cutting depth of up to 30mm, ideal for furniture repair and woodworking projects.Specification:Item Type: Adjustable Punching SawMaterial: Nylon + Zinc Aluminum AlloyColor: Silver + BlackCutting Depth: Approx. 30mm / 1.2inShaft Diameter: Approx. 8.5mm / 0.3inShaft Length: Approx. 25mm / 1inAdjustable Diameter: Approx. 45-130mm / 1.8-5.1inApplication: Suitable for sawing solid board, compression board, gypsum board, plastic, etc. Suitable for home repair projects.Package List:2 x Adjustable Punch Saw3 x Blades1 x Positioning Bit (Use Range: 0.6cm / 0.24in)2 x Hex Wrenches4 x Screws