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The CD Trick for Drilling Perfectly Perpendicular Holes
Why has no manufacturer solved this problem yet?
It's amazing that no power tool manufacturer has designed a drill that makes it easy to create holes perfectly perpendicular to the surface of the workpiece. As Jimmy DiResta once suggested, the top and perhaps one side surface of hand drills ought be made perfectly flat, so folks could run it against a straightedge to get square results.
Until someone creates such a thing, here's a trick for using the reflection in an old CD to help improve squareness:
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Comments
why has no manufacturer solved this yet? they have, it's called a drill press.
But i wanted a square hole.
Mortiser.
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how about a quadsaw? https://www.quadsaw.com/
Very clever and nicely done tool.
A: You don't use twist drill bits when you need precise holes.
if you need a hand held option you can also get a drill guide. https://www.rockler.com/portable-drill-guide
or this laser contraption: http://www.bullseyebore.com