Features 1、8 HOLES: Dowel jig has a metric and eight different diameter hole(8mm, 9mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm), can meet various requirements. Quick and easy to use 2、EQUIPPED WITH CARBIDE CUTTERS: Dowel jigs ensure incisive cutting and provide a smoother cutting experience. The carbide cutter design makes it suitable for making round dowel nails 3、EROSION RESISTANT ALUMINUM ALLOY: The adjustable dowel jig is made of quality CNC aluminum alloy with an anodized appearance for durability 4、EASY OPERATING: Simply loosen the screw, rotate the red to the desired diameter, and then tighten the screw. Dowel jigs make dowel pins quickly and easily for cork and woodworking projects 5、ACCURATE AND PRACTICAL: The dowel maker jig kit has thick holes that effectively maintain the forward direction of the workpiece, resulting in straighter mortising and better accuracy, especially for longer mortising or wood sticks Specification Item Type: Dowel Maker Jig Kit Material: Aluminum alloy, carbide Hole Size: Metric, approx. 8mm / 0.31in, 9mm / 0.35in, 10mm / 0.39in, 12mm / 0.47in, 14mm / 0.55in, 16mm / 0.63in, 18mm / 0.71in, 20mm / 0.79in Package List 1 x 8 Hole Dowel Maker Jig 1 x Wrench