High-quality MaterialThe adjustable electric drill milling rod tool is made of high-quality aluminum alloy ensuring strength and durability while the surface anodization process provides resistance to rusting for a long-lasting performance. 8 Hole DesignThe adjustable milling rod tool has eight different diameter chipping holes8mm, 9mm, 10mm, 12mm, 15mm, 16mm, 18mm, and 20mmthat meet various woodworking needs. The holes are accurately bored for precise sizing, ensuring even cuts. Easy to UseThis dowel maker jig tool features a beautiful, lightweight, and practical design that is easy to carry. It comes equipped with a sharp and durable indexable carbide blade that can be used on all sides for a smoother cutting experience. Versatile ApplicationThis adjustable milling rod tool is suitable for a wide range of woodworking applications including mortise and tenon structure work, engineers, carpenters, and decoration workers. It is a must-have tool for wood industry professionals and DIY enthusiasts alike.