The Crescent Wiss® Straight handle hand seamer is a powerful tool for bending or flattening sheet metal by hand. It utilizes an optimal handle span to deliver maximum power from an ergonomic operating range and features non-slip cushion grips for great comfort and control. Features Traditional Wiss-style grips Non-slip cushion grips for great comfort and control Produces a permanent, tight-fitting seam Features 1/4 in depth markings Optimal handle span for maximum power and comfortable operating range