The interchangeable crimping heads have integral jaws that close in an arc-like motion. After an operator locates the terminal between the jaws and inserts the wire, the trigger is depressed and the jaws close, crimping the terminal to the wire. The jaws remain closed until the trigger is released.
Crimping heads are coated with preservative to prevent rust and corrosion
Wipe the preservative from heads, particularly from crimping surfaces