Klein Tools 86553 Straight Hand Seamer Compound-leverage mechanism easily and accurately bends, seams and flattens sheet metal and non-ferrous metals Folds 22-Gauge CRSM and 24-Gauge SSSM Jaw marked in 1/4-Inch (6mm) increments for precise bending measurements Broader jaw for forming wider folds Heavy-duty jaw/handle linkage for durability and easy operation