The patented automatic self-centering action of these jigs assures accurate center drilling every time, even on round objects. Large steel clamping screw tightens the tool like a vise, with rugged aluminum sides holding work securely without damage to the wood. Large 2" to 2-7/16" capacity on all models will handle most size requirements. Drill guide centers are hardened, guide holes are precision drilled and reamed for extreme accuracy. USA.
The Deluxe Doweling Jig features two permanent drill hole sizes: 7/16" and 1/2" and six removable screw-in bushings for extra hole patterns. Bushing sizes are 1/4", 5/16", 3/8" (two of each). Allows drilling of two holes of the same size parallel to one another for double dowel applications on a 3/4" center to center space.

Features:

• Self Centering
• Features two permanent drill hole sizes 7/16" and 1/2"
• Six removable screw-in bushings for extra hole patterns
• Made from aircraft grade aluminum
• Steel plated for corrosion prevention