HVAC and sheet metal pros agree: When making long, straight cuts in thinner-gauge sheet metal, tinner snips are the way to go. They’re a simple, economical, and durable cutting solution for many sheet metal and HVAC applications. New Crescent Wiss lightweight aluminum and drop-forged steel tinner snips are the most durable we’ve ever made with precision ground cutting edges and an adjustable pivot bolt. Available in a wide selection of styles and sizes, there’s a perfect Crescent Wiss snip for every job. The Crescent Wiss 13 in. Lightweight Aluminum Handle Tinner’s Snips have a longer handle length and a rounded head design to improve cutting leverage. Large, wide handle loops comfortably fit all hand sizes. The sleek head design reduces the effort required by allowing an easy flow of material while cutting.