This folder is carefully designed to accomplish all the general uses a bookbinder or conservator has: scoring, folding, turning-in, applying non-marring local pressure, large scale smoothing. The small rounded tip area is slightly blunt. Delrin is hard and stiff almost like bone, but has a coefficient of friction similar to Teflon. It can hold a much thinner and sharper edge than Teflon, though is not as hard as bone. It has a nice, non-plasticy feel. I saw, file, scrape and polish these from a solid block of Delrin. More information.  Approximately 7 x 1 x .375"