This convenient self-centering doweling jig clamps directly to your workpiece for precise right-angle drilling. The jig is ideal for making accurate dowel-strengthened butt joints, miter joints, and edge joints.

• Drill holes for 1/4 in., 5/16 in., 3/8 in., 7/16 in., and 1/2 in. dowels
• Easily and accurately centers on wood boards up to 2-3/4 in. thick
• Heavy duty extruded aluminum frame and hardened steel bushings