
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Horotec Case Press' have a reputation of being some of the highest quality watch case tools you can buy. These reversible Delrin dies are specially made by Horotec for closing snap-on case backs . The Delrin, a type of nylon, dies offer a very strong, hard, non-marring die that won't mar or scratch your watch case back or crystal. The Delrin dies are constructed with threaded brass centers so the dies easily screw onto the case press. 8 cupped die sizes to choose from: 17mm, 19/21mm, 22/25mm, 26/29mm, 30/33mm, 34/37mm, 38/41mm, and 42/45mm. A universal die can be used for many things like pressing on and installing wristwatch case backs, uniquely shaped crystals (rectangular, square, oval, etc.), crystals with magnifiers and more.