Hole Cutter Punch Screw is ideal for thin layered materials up to 4.0mm. They can deliver a smooth clean circular hole cut into the surface material giving a burr-free smooth circular hole. Suitable for Sheet Steel, Stainless Steel Sheets, Non-Ferrous Metals, Light Metals and Plastics. Used in the plumbing industry for sinks to produce a plug hole or to allow a tap/other fitting to be installed. Used in all trades including electrical and construction. - • DURABLE - High quality steel cutting and bracing edges. • CLEAN CUTTING - Clever design results in a burr-free hole by evenly spreading pressure during cutting. • SIMPLE TO USE - Once pilot hole is drilled and cutter is attached, use a spanner to turn the cutter and thread will apply the required pressure. • PRECISE - Accurate cutting, ideal for cutting sinks for tap and drain fitting. • TIME-SAVING - No extra finishing needed, due to clean cutting. • SUITABLE FOR ALL TRADES - Used in all trades including electrical and construction.