How do you crimp a new door skin tight without marking the outside face? First fit the skin onto the door frame and use the door skinning tool to bring the flanged edge over the door frame. Then reverse the tool and use the plastic face to crimp the edge tight to the frame. Also available 2\" and 1.25\" Replacement Pad Features at a glance: High-Quality Steel - So it won’t flex Nylon Pads - Won\'t damage the surface of the metal Padded Grips - To ease hand fatigue This door installation tool allows you to bend and form skin flanges methodically and effortlessly, ensuring an accurate fit. Made for FROST - BUILT TO LAST !