Doweling Jig Kit that features a compact design coupled with durable construction.Cast aluminum doweling jig ideal for creating edge-to-edge, edge-to-corner and T-joints.Hardened steel bushings in 1/4-inch, 5/16-inch, and 3/8-inch sizes make precision drilling quick and easy.Works with materials from 1/2-to-1-1/4-inches thick.5-year warranty.