Check the listing for details. Malco 12F 12 Folding Tool. Color: Multicolor, Condition: New. Listed at 24.19 USD. Product Description The 12" folding tool is ideal for HVAC applications such as 3/8" folds for drive cleats and one inch deep folds for joist panning, plenums, register boots, trunk line end caps, and more. Handy sight holes ensure proper depth alignment. 12 " (31 cm) Folding Tool with 3/8" (9.5 mm) & 1/2" (12.7 mm) depths. From the Manufacturer 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 . 12 inch folding tool, creates 3/8" and 1" fold depths in ductwork. Folding seams are formed from two steel halves, permanently joined together. Handy sight holes ensure proper depth alignment. 1 in. (25.4 mm) deep folds for joist panning, plenums, register boots, trunk line end caps and more. 3/8 in. (9.5 mm) folds for drive cleats.