[TowerTalk] Cutting Large Holes in Aluminum

[David J. Windisch]

I have cut 2-1/2" holes in the same stuf for the same reasons using the good
(expensive) coring hole-saws in a floor-model drill press.   Cut from both
sides.   Used lotsa cutting oil, and had no problems.   Took about a
half-hour per hole.

73, Dave, K3BHJ


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