Q: I need to drill perpendicular holes in wood, but I don’t have a drill press. What’s the best way to get accurate results? - John W. Stewart, Newport, WA
A: If you can’t use a drill press, a good, affordable tool for boring perpendicular holes is a portable drill guide. These devices cost $30 to $35 and can offer precision comparable to that of a drill press. In addition to perpendicular holes, they allow for controlled drilling at any angle up to 45 degrees.
A drill guide has protractor scales on both arm bases and a depth stop. You attach a bit to the drill guide’s chuck and then attach the drill to the shank stemming from the chuck. The guide’s rails hold the drill at the angle you set. - HANDY