Malco 12F 12-Inch Folding Tool
12 inch folding tool is ideal for HVAC applications such as 3/8-inch folds for drive cleats and 1-inch deep folds for joist panning, plenums, register boots, trunk line end caps and more. Folding seams are formed from two steel halves, permanently joined together. Handy sight holes assure proper depth alignment. 12-inch (31 cm) Folding Tool with 3/8-inch (9.5 mm) and 1/2-inch (12.7 mm) depths .