> When drilling metal, no
> matter how carefully you align the point, and anchor the workpiece,
> the bit still tries to wander. Everything flexes.
Especially the drill bit!
Even using a Bridgeport as a drill press, and a proper pilot drill with a
solid shank many times the hole diameter, you'll still get some wander.
Only way to make an accurate hole is to start with a center punch.
Randall
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