The F132-F133 set eliminates whip-up and is highly recommended for high-production hemming of large sheets. The initial operation produces the acute bend. The second operation flattens the hem between the punch anvil and the spring-loaded pad in the die. This set is normally used to form 20 gauge and lighter material. It can be modified to form 18 gauge by extending the punch anvil and adding an adjustable forming angle. Maximum hem length is 3/4".
