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help with hole saw

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brained:
Well this is my second hole saw, I damaged the first one and I don't wan't to screw up again. Please can you give me any suggestions on using a hole saw to go through a metal control panel.

I've heard before that you need to go through metal slowly so that you don't damage the hole saw. Any suggestions???

BTW this is a Dewalt Bimetal hole saw.... TIA

somunny:
How big are the holes that you're drilling?  If they're fairly small (less than two inches in diameter), you might want to think about using a knock-out set.  Some equipment rental businesses carry them.

If you don't know what a knock out set is, try Googling 'greenlee slug buster'.  It'll punch perfect holes.

Coop

brained:
I know about knockout sets, but they're kinda expensive so I went with the hole saw option. Any suggestions.

whammoed:
Hmmm, I used a Lenox brand bi-metal 1 1/8" hole saw for 30 holes in 16 guage steel without issue.  It was still working like new.  I don't think I did anything special other than putting a little machine oil on the panel, so try using a little oil this time.  Step bits are another option but they too are a bit pricey at around $50.

brained:
well right now the only oil I have in my hands is Car oil... will that do???

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