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Discussion Starter #1
Quick question: what’s a good cutting oil (for metal) that I can get locally? I see all kinds of recommendations for stuff that can be ordered online but I want something I can get from a local auto or hardware store, ya know?
 

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Have you went to your local hardware store and asked for cutting oil? Since we're not local to you we would have no idea what you can get local.
 

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Harbor Freight and Granger carry CRC. I would think a good ol' hardware store would carry it as well.

You can also get by with other fluids until the good stuff arrives from an on-line source.
 

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Discussion Starter #4
Have you went to your local hardware store and asked for cutting oil? Since we're not local to you we would have no idea what you can get local.
I was talking like Home Depot, Menards, Lowe’s, Ace Hardware, etc.
 

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Discussion Starter #5

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Discussion Starter #6
I called Harbor Freight and they have CRC Cutting Oil in stock. Thanks guys!
 

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I have seen 3-1 oil used, seen diesel used and sometimes a mixture of diesel and other oil depending up on the application. Heavy bodied for thread cutting and brush during lathe or milling. Seen straight diesel when using a pump to spray a part being machined, served as lubricant and also kept metal shavings washed away.
 

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My two faves were Cool Tool and Moly D. Cool Tool for threading stamped stainless hinges that we produced thousands of per month. Moly D was to fix a vendor's F-up and we had to cut threads on formed stainless wire - by hand. Not a fun week.
 

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Mostly it depends on what you're cutting. I use an oil base on steel and trans fluid on aluminum. I haven't cut any copper or brass for years so I don't remember what I used.
 

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Discussion Starter #13
I used my tubing notcher for the first time last night and the CRC Cutting Oil worked great (as did the JD2 Notchmaster and Milwaukee hole saw - free plug!). It’s in the plumbing section of Harbor Freight and I believe Grainger also carries it if you have one in your area.
 

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I hadn't noticed the CRC fluid at HF. I'll be sure to pick some up the next trip. I REALLY like Tap Magic but it's pretty expensive so I like to reserve it for small jobs.
 

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If you are going to notch a fair amount of tubing (cage, chassis, etc) prolly want to switch from aerosol to bulk. Your wallet will thank you. I use Rapid Tap that I transfer from the big container to a squeeze bottle. You can get most any of the fluids in quart and larger. One of the squeeze gooseneck oil cans work well. A lot of fab guys use Rigid Dark cutting lube. Pretty affordable at $20-25/gal.

 
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