Feature:1. Carbide Inserts: The adjustable dowel maker jig uses circular carbide blades, which are incisive and wear resistant, which can provide a smoother cutting experience.2. Specifications: This round bar maker jig has 8 metric holes with different diameters, 8mm, 9mm, 10mm, 12mm, 15mm, 16mm, 18mm, and 20mm, to meet different work needs.3. Easy Operation: Simply loosen the screw and rotate the red tool holder to the desired diameter to immediately re tighten the screw and make it convenient to use.4. Aluminum Alloy: The round bar dowel maker is made of excellent aluminum alloy with anodized finish, has good rust and corrosion resistance, and a long service life.5. Other Accessories: This kit is equipped with blade wrench, adjusting wrench, fixing screws, and drill bit, this adjustable dowel jig is easy to use, widely used in woodworking.Specification:Item Type: Adjustable Dowel Maker JigMaterial: Aluminum AlloyColor: Black, RedRound Hole Specification: 8mm 9mm 10mm 12mm 15mm 16mm 18mm 20mmFinish: AnodizedBlade Material: Throw Away Carbide InsertsBlade Specification: 15x15x2.5mm, 30R150.Package List:1 x Adjustable Dowel Maker Jig1 x Blade Wrench1 x Adjustment Wrench3 x Fixing Screws1 x Drill Bit1 x Round Nail Head