the first tool would fold them to 45° and the second set would final clinch the skin.I’ve never had to use a hammer, just used the pliers to start the fold then turn the pliers so the plastic pad is on the outside of the door skin to finish crimpingI used the Sykes Pickavant type the other week to put a door skin on an MG.
Need to start it off by hammering the edge over then use the pliers to finish it off.
