PowerArc Shears from FISKARS are an ideal tool for cutting through many types of material, from insulation to Tyvek. “PowerArc” is a patent-pending technology that utilizes curved blades to give the user 30% more power, which makes even the toughest part of the cut easier. PowerArc Shears emphasize comfort, featuring an ergonomic handle with strategic texturing that creates a great amount of grip and control. The 8-inch blades are highly maneuverable so that it is easier to make cuts even in hard to reach places. The Shears come with a full lifetime warranty and are made with heavy-duty coined stainless steel blades that will not rust. They can be bought at several online retailers for $22.99.