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Re: Depends on thickness [message #29383 is a reply to message #29382]

Thu, 27 January 2005 03:11

BillEpstein
Messages: 886
Registered: May 2009

Illuminati (2nd Degree)

If it's very thin you'll need to sandwich it between 2 pieces of plywood and clamp. Thicker sheet means cooling as you drill, a squirt of 3 in one oil. Just use one of those 'bi-metal' hole saws you buy at Lowes/Home Depot. About $10. Be sure and clamp the workpiece to the bench or drill press table. If you don't, the workpiece can easily get away from you and spin.
That's bad!
Better yet, while you're buying the hole saw, see how much a Greenlee punch is over in the electrical dept.

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[Message index]

		Holes in metal w/o chassis punch. HELP!!! By: colinhester on Wed, 26 January 2005 20:07
		Re: Depends on thickness By: BillEpstein on Thu, 27 January 2005 03:11
		Re: Holes in metal w/o chassis punch. HELP!!! By: GarMan on Thu, 27 January 2005 07:29
		Another thing: WEAR EYE PROTECTION! (nt) By: GarMan on Thu, 27 January 2005 07:57
		Re: Another thing: WEAR EYE PROTECTION! (nt) By: colinhester on Thu, 27 January 2005 09:02
		Hole saw worked like a champ. Thanks (nt) By: colinhester on Fri, 28 January 2005 23:16

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