Description: - This is a set of self centering guide tools for holding and centering while ing and woodworking - The height of the two feet can be adjusted according to the thickness of the board, making the ing more accurate, a powerful woodworking tool - Parameters: guide sleeve: 2/3/4/5/6/8/10mm. - Wide range of applications: suitable for fixing on boards of various thicknesses, two claws are convenient for quick positioning of the hole center, dust removal groove design - Material: stainless steel, surface oxidation , high hardness, wear resistant, rust proof, durable, easy to useSpecification: - Material: Stainless SteelSize Chart:Length: approx. 140mm/5.51inch, Diameter: approx. 50mm/1.97inch, Thickness: approx. 32mm/1.26inchPackage Includes:1 Piece Vertical Self Centering Dowel Jig7 Sizes BushingsNote:1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful on-line shopping!