Braithwaite Skin Graft Knife  is used to collect a slice of healthy skin from a donor site to perform a skin graft. To manage the thickness of the skin graft, it usually features a long, flexible, and sharp blade. It features an adjustable nut at the end of the knife that allows you to move the roller bar up or down to alter the thickness of the graft. https://new-medinstruments.com/skin-graft-knife-handles