Tin snips or metal snips are hand tools used to cut metal siding, flashing, aluminum, sheet metal and other materials. There are two main types of snips: tin snips and compound-action snips. Tin snips look like scissors but with longer handles and shorter blades. Regular tin snips are for straight cuts, and duckbill snips cut sharp curves. Aviation snips or compound snips were originally created to cut sheet metal in the aviation industry. These snips have 2 pivot points and are spring loaded to lessen fatigue for the user. Aviation Snips have three cutting styles: straight cutting, left cutting, and right cutting. Pay less for hand tools like locking plierstongue and groove pliers and locking clamps when you shop at Zoro.