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.