This dovetail jig template lets you make repeatable, strong, precise dovetail joints correctly with ease. By controlling the positioning of the teeth and the milling cutter, it is easy to accurately control the size of the bumps. Made of Aluminum with engraved marking for ultimate clarity and long lasting durability. Ideal for setting up blade height on table saws and Router bits depth. Suitable for woodworking - solid aluminium laser marking - high precision. Wide application: The dovetail is fashioned with premade convex and concave guides that fit standard measurements used in furniture making. With metric/inch scale, accurate reading and can meet different needs. Parameters: Front metric scale: 5-6-8-10-12mm, Imperial scale on the back: 3/16-1/4-5/16-3/8-1/2 inch. Perfect for setting up blade height on table saws and Router bits depth.