Now you can machine 35mm hinge cup holes with your router instead of a drill - a nice option when you don't have space for a drill press. Since your hinge mounting screws serve double-duty as clamps, setup is simple. Just screw it on, rout and repeat! Can be adjusted for either 3mm or 5mm tabs. Designed for Blum hinges. Use with the 5/8" Short-Shank Guide Bushing, (specially designed for 1/4" template stock; sold separately; Rockler# 38756) and a 1/2" spiral upcut bit (sold separately).