Can be used with standard 35mm Concealed Hinges.Hinge hole cutter:Bore diameter is 35mm. Special removeable depth stop design makes drill easierConcealed Hinge Boring Jig:Features a "V"-locator that works off of a center reference line and quickly locates drill center points for all of hinges and mounting plates.The Concealed Hinge Jig allows you to drill cup holes for concealed cabinet door hingesHole position is accurate,drill hinge holes conveniently and fast.Makes cabinet door installation easycolour: blue + silverMaterial:Alloy + plasticPackage Contents:1 x Forstner Bit1 x Mounting Plates1 x WrenchOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.