Slug-Splitter SC heavy-dutypunches are designed to punchup through 10 gauge (3.5 mm) stainless steel Unique slug-splitting design and tool steel constructioneasily punch 10 gauge (3.5 mm) mild steel and stainless steel Self-centering punch aligns itself on pilot hole. (Slug-Splitter SC) No need to draw crosshairsor line up die alignment marks (Slug-Splitter SC) Unique punch profile also splits slugs for easier slug removal Heavy-duty dies and stainless steel draw studs for longer life Excellent abrasion resistance for punching fiberglass and plastic Slug-Splitter SC punch units consist of: punch, die and draw stud10~ Check individual punch for specific capacity11~ U.S. Patent No. 4,543,722for standard Slug-Splitter12~ Patent Pending for Self-centering Slug-Splitter SC Application : For Slug-splitter SC (Self Centering) Knockout Punch Unit Capacity Stainless Steel : 10 GA (3.500 MM) Draw Studs : 29452 Hydraulic Driver 12099 Ratchet Driver Size : 1-15/16 IN (49.600 MM) Sub Brand : Slug-Splitter SC