OGT1974 Features: * Slug-Splitter heavy-duty punches are designed to punch up through 10 gauge (3.5 mm) stainless steel * Heavy-duty dies and stainless steel draw studs for longer life * Excellent abrasion resistance for punching fiberglass and plastic * Applicable Materials: Mild Steel, Aluminum, Fiberglass, Plastic, Stainless Steel * Cutting Cap.: 10 gauge (stainless steel) [Max] * Price is for 1 Each Construction: * Unique slug splitting design and tool steel construction easily punch 10 gauge (3.5 mm) mild steel and stainless steel