This is a very clever jig and will allow you to very accurately position holes in the exact place and reposition on an opposite member if required for dowelling. Simple to look at and use the secret is in the precision with which the jig has been made that ensures accurate hole position every time, especially designed for the Lamello Invis system it can also be used for other drill and dowelling hole positioning.
A network of holes in the jig and pins are used as reference stops against your work so no matter what the shape the hole position can be repeated. Simply choose the correct drill bush and screw this into the jig so that it will guide your drill bit. Once drilled, remove pins and bushes, relocate in the same holes, protruding from opposite side of the plate, this then guides the plate and drill in place for an exact mirror hole position. The Duo kit contains; 2 Drill plates, 6 guide pins, drill bits 5, 8, and 12mm with stop collars and guide bushes 5, 8, 10 and 12mm, jointing bar and length stop all packed in a Systainer case for storage.