Self-Centering Dowel & Marking Jig

The Big Horn 19617 Self-Centering Dowel Jig is a precision woodworking tool designed for accurate and efficient dowel joinery. Its self-centering mechanism ensures perfectly aligned dowel holes, eliminating guesswork and minimizing errors in woodworking projects. Featuring a 2-in-1 design, it functions as both a doweling jig and a precision marking tool, with eight graduations (1/8in, 1/4in, 3/8in, 1/2in, 1/16in, 3/16in, 5/16in, 7/16in) for centerline and offset marking on wood, metal, and plastic. The adjustable mechanism accommodates 2in, 3in, and 4in material, making it ideal for furniture building, cabinetry, and general woodworking applications. Equipped with three hardened steel drill sleeves and three matching stop collars (1/4in, 5/16in, 3/8in), it allows for precise positioning and uniform hole depth, preventing over-drilling. Crafted from high-quality aluminum alloy, it provides exceptional durability, corrosion resistance, and long-lasting precision, making it a reliable and essential tool for any woodworker.