These Fiskars aviation snips have forged, heat-treated steel blades and handle for strength and durability. PowerGear technology gives you enhanced leveraging for 40 percent more power without sacrificing cut length. The left-cut snips can be locked in different directions, allowing you to cut a range of materials from sheet metal to gutters and more. The ergonomic, spring-assisted handles with soft grips give you better comfort and control. They can cut up to 18-gauge cold-rolled steel or 22-gauge stainless steel and provide cuts up to 1 1/2-inch in length.