Self Centering Dowel Jig easily and accurately find the center of a board’s edge every time; no measuring and no tedious trial and error adjustments required. This makes it the perfect tool for both mortise and tenon layout and drilling dead-on aligned dowel joint holes.
Always Find Dead Center With The Self Centering Dowel Jig. This layout tool takes all the guesswork out of precisely marking-out mortise and tenon joints that are centered exactly on your stock. Based on the never-fail reliability of a parallelogram, the Self Centering Dowel Jig features two, precision-machined parallel arms that quickly adjust to the stock thickness, placing the center bar dead center on the material. Just use a pencil, marking knife or scribe tool to mark out the center bar location on your stock– and you’re done!
Choose From Four Mortise and Tenon Thicknesses . Changing the thickness of your mortise and tenon layout is fast and easy. Simply remove the two thumb screws that hold it in place and switch to the marking bar width you want. Marking bars are machined from stainless steel for maximum durability when used with marking knives and come in 1/4", 3/8", 7/16" and 1/2" widths for the inch version and 4mm, 5mm, 6mm, 8mm and 10mm for the metric version. These are all the sizes you need for stock from 1/2" to a full 1" thick and more. The parallel arms open to accommodate stock up to 2" thick. Each marking bar has a precision-machined 1mm tapered hole centered on the bar’s width. Reliably finding the center of stock is essential in a variety of layout work. Use this feature to mark the exact center of stock with either a scribe tool or mechanical pencil.