General Tools Doweling Jig is a precision tool designed to ensure accurate alignment of dowel holes in furniture making and carpentry projects. This versatile jig clamps securely onto workpieces ranging from 0" to 4" in width, providing stability and precision during use. It features a revolving turret equipped with six twist drill sizes—3/16", 1/4", 5/16", 3/8", 7/16", and 1/2"—allowing you to select the size for your doweling needs. Packaged in a convenient box, this doweling jig is an essential addition to any woodworking toolkit, helping you achieve professional results with ease. Model Number: 840