Malco hand seamer with die cast zinc jaws are gentle on painted or coated metal surfaces and are ideal for making a clean and accurate bend and seams in aluminum roof flashing, coil stock or fascia. The jaws feature depth graduations 1/4" increments to a maximum 2" bending depth. The jaws are bowed so that they will hold firmly and evenly across the entire width even when engaged on very light material. Durable construction offers long dependable service life under normal use. These tools also feature rust resistant nickel plating. Feature ergonomic RedLine handle technology. An engineered handle opening compliments the natural power stroke of any users hand and maximizes the powerful 7:1 mechanical advantage of compound leverage head to handle linkage. Comfortable handle grip contours, a non slip grip insert, spring handle actuation and thumb-operated handle latch ensure a natural fit and feel for comfortable one hand operation anywhere on the job.