

These quality reversible Delrin dies are specially made for fitting large and deep domed watch crystals. 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. 12 cupped die sizes included: 18mm, 20mm, 24mm, 28mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm and 65mm. The 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.