the durability and versatility of our metal adjustable punching cutter Craft with high strength alloy, this hole opener cutter is builts to last Easily adjust the cutting diameter for and efficient hole drilling in wood, plywood,, and more The adjustable scale allows for adjustments, ensuring accurate drilling every time Suitable for gypsum board, plywood, and board Perfect for enthusiasts, engineers, and woodworking projects, Manufacturer: Kalttoy