Our assortment of spiral-groove dowel pins is perfect for any workshop. These spiral-grooved birch dowel pins are engineered to a diameter tolerance of +/- .005 with a moisture content of 6-8%. The premium spiral design ensures even glue dispersion to create a strong joint. Diameter sizes of 5/16", 1/4", 3/8", 1/2" available.
Check out our entire inventory of spiral groove dowel pins here: https://www.woodcraft.com/categories/dowels