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Old 01-22-2014, 12:19 PM   #11
nab911
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Originally Posted by augiedoggy View Post
I used motor oil... Without oil the bits will dull almost instantly in the stainless... I dont know of a way... I actually bought a second kit in case I need to drill anymore holes since the larger step bit from my first kit is very dull now from not using oil.
I also drilled a starter hole with a regular bit which made things go faster.
I used olive oil as it is what was down there. I spose I might have to suck it up and get one more step bit to finish them off. I need 4 more steps on one hole and 2 on the other as I want to fit my female/female couplers in there for soldering.
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Old 01-22-2014, 12:34 PM   #12
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Originally Posted by nab911 View Post
I used olive oil as it is what was down there. I spose I might have to suck it up and get one more step bit to finish them off. I need 4 more steps on one hole and 2 on the other as I want to fit my female/female couplers in there for soldering.
yeah when my bit went dull is still looked ok just wouldnt cut worth a damn. they do sell a cutting oil too...
Funny I have a friend who lives in altanta whos an avid home brewer. I'm still trying to convince him to jump to all grain.
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Old 01-22-2014, 04:19 PM   #13
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I have found some really great deals on Ebay. At least 1/3rd the price for genuine Greenlee's at times.

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Old 02-21-2014, 08:33 PM   #14
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Just wanted to put a final post on this thread for anyone doing a future build and uses this for reference.

The knockouts described above work perfectly. I bought a 13/16 & a 9/16 and both worked beautifully to make the recommended holes in my 20ga Blichmann Boilermakers, and were a fraction of the price of the Greenlee counterparts.

Follow the directions and grease the screw! And maybe most important, spend the $4 on the right kind of drill bit for the pilot hole. Cobalt is what you need to drill through stainless. Took me 45 minutes to drill the first hole with a regular bit. Less than 30 seconds with a cobalt bit. Right Tool, Right Job, Right!

Again thanks to all who replied to my inquiry.

Best, JW

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Old 02-21-2014, 11:20 PM   #15
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Titanium Nitride bits work great too.. (be sure to lubricate properly)

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Old 02-22-2014, 02:15 PM   #16
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Cutting oil is cheap bit insurance. Slow speed is the other. I just used the Chinese junk Bobby sells on brew hardware. Worked like a charm.

Sent from my SGH-I747M using Home Brew mobile app

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