Dowel aid for all common dowel connections with 6 mm, 8 mm and 10 mm diameter for coin, angle, T and surface connections. Dowel jig made of hard plastic for creating precisely fitting connections such as with glued laminated timber, solid wood and chipboard. The dowel aid is particularly suitable for vertical 90-degree holes in various materials such as hardwood and tiles. Thanks to the rubber anti-slip protection for smooth surfaces, safe and precise work is also guaranteed here. Ideally used in a set with the LINE MASTER precision ruler and the guide for the dowel professional. With the adjustable turntable of the dowel drilling jig, drill holes with a diameter of 3 mm to 12 mm can be drilled.