This Sealey Hole Cutter Punch Screw is designed for creating smooth, clean, burr-free holes in thin layered materials up to 4.0mm. Its high-quality steel cutting edges and clever design distribute pressure evenly for precise cutting. Simply drill a pilot hole, attach the cutter, and use a spanner to apply pressure. It's ideal for plumbing applications, such as creating holes for sinks and tap fittings, and is also useful for electricians, construction, and handicrafts. The tool is suitable for use on Sheet Steel, Stainless Steel Sheets, Non-Ferrous Metals, Light Metals, and Plastics.