The Stanley FMHT73569 Fat Max Hand Seamer features 3-1/4 inch jaw width and 1-1/4 inch maximum seam depth. This tool can crimp heavier gauge pipe up to 22 gauge galvanized steel. Also able to bend and flatten sheet metal, and commonly used to crimp round metal pipe, gutters, and downspouts to create a male fitting end. Slip-resistant bi-material grip for comfort and control.