Just screw two short pieces of wood together at a 90* angle. Place your bit onto the wood to be bored, (centered on the hole location), and slide the jig up against the bit. Adjust the drill so the bit touches two sides of the 90* jig at both the top and bottom of the jig, then holding the jig tightly against the wood to be drilled and drill the hole keeping the bit touching the two sides of the top of the jig. This will keep the bit perpendicular to the workpiece.
Another alternate would be to cut about a 2" length of aluminum angle, (making sure the cut is 90* to the length on BOTH of the angles sides, stand it on end with the freshly cut square ends on the workpiece and use it the same way as mentioned above. The angle would be best if it was about 1 1/2" x 1 1/2" Angle or better.
Last edited by Norman Hitt; 11-19-2009 at 7:14 AM.
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