Description This jig is suitable for the AGB Eclipse 3.2 range, including the 3.2 HD Concealed Hinge and 3.2 HD SELF Concealed Hinge, providing that the correct depth is drilled/routed out for. We recommend use of a top bearing guided router bit, E.g. Trend C121BX1/4TC, and drill out to full depth with a 22mm Forstner/ None self-feeding spade pit, and then cleanup with a chisel as needed. Indicator is centred and then has 3mm offset either direction, to allow correct placement of hinges. Manufactured using additive manufacturing with nylon PA12. If damaged by the router bit, it can be repaired using a two-part wood filler, while also ensuring no damage occurs to the router bit itself. Comes with the jig and 2 inserts. Atlantic UK recommend that this is only used on new doors and doors frames. Suitable for doors that are 35mm and upward, and with frame rebates that are no more than 12mm deep.