PACKAGE INCLUDES :Contains an adjustable electric drill milling round rod tool, a carbide blade, a T20 blade wrench, a 5mm adjustment wrench, and 3 setscrews.PRODUCT MATERIAL:The adjustable electric drill milling rod tool is made of high-quality aluminum alloy, and the surface is anodized, which is harder and wear-resistant, with good insulation performance and long service life.PRODUCT MATERIAL:This dowel maker jig tool is beautifully designed, light and practical, easy to carry, equipped with a sharp and durable indexable carbide blade (the blade can be used on all sides), providing you with a smoother cutting experience.EASY TO USE :There are eight different diameter chipping holes on the main body, which are 8mm(0.32in), 9mm(0.35in), 10mm(0.39in), 12mm(0.47in), 15mm(0.59in), 16mm(0.63in), 18mm(0.71in), and 20mm(0.79in). Each diameter has fixed screw holes, and each gear is processed through CNC precision machining. Simply rotate the red tool holder to the desired diameter gear, and then tighten the screws to make circular wooden strips with corresponding diameters, which can meet your various work needs.VERSATILE APPLICATION:This adjustable milling rod tool is suitable for mortise and tenon structure enthusiasts, engineers, carpenters, and decoration workers, and is a must-have tool for wood industry workers. If someone around you is keen on DIY, this will be the best gift.