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Tool Talk Discussion Forum

Cutting Oils- What do you guys use?

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No Genius

02-06-2008 17:13:22




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I don't know whats best here, I've heard of em and seen em but never used them. For drilling in metals I always grab WD 40 or the next closest thing, even chain saw bar oil but i never considered if any of these are bad or good.




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flying belgian

02-09-2008 10:58:56




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
cooking oil from the house.



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TomTex

02-08-2008 06:51:58




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
Brownell Dew-Drill. Get it in quart can. Once you use it to drill, you will always use it. Tom



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J.C.in AZ.

02-07-2008 16:49:34




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
I'm a dedicated Customer of Kano Labs and use Kroil for Cutting Oil. I do not have any idea if it is recommended or not but it works for me,matter of fact I use it for a lot of Penetrating oil uses.



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RusselAZ1

02-07-2008 16:24:31




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
I like magic tap or the liquid wrench with teflon in the aqua colored spray can.

I found how good the liquid wrench was while using a cutoff tool in the lathe. It instantly relieves the surface tension on the tool.



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timcasbolt

02-07-2008 15:44:43




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
For tapping, you can't beat Crisco. I've had very good luck with Hangsterfer's Hard Cut for stainless.



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bjw4076

02-07-2008 09:16:43




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
This is the stuff we use at work. There are a few holes that get drilled in the assy of an a/p



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Sean McDonnell

02-07-2008 08:47:35




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
Where I work we always use Tap Magic. The stuff is great, makes a night and day difference when drilling stainless. For my own personal use at home it's usually Kerosene or whatever other light oil I happen to have lying around.



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old timer in Ohio

02-07-2008 07:30:50




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
Hey there: Myself I'd rather put up with the "stink",than trying to dig a broken tap out of a hole.The heavy sulphur
based oil has worked for me,for over 50 years!! Bob
God Bless



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Dick L

02-07-2008 08:55:57




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 Old Timer In Ohio ? in reply to old timer in Ohio, 02-07-2008 07:30:50  
Back in the 50's we had a gas burner in the corner of the shop and the cutting oil was made by melting powder sulphur in a coffee can over the burner and mixing it with oil that was bought in 55 gallon drums. The formula was posted on the wall behind the burner. I have looked for the formula on the net but it seems to be a dont do anymore thing.
For taping I use bacon grease at home. In my tool shop I buy it from Production Tool. Tap Magic is one we use out here also for tuff stuff.

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JerryCPP(WA)

02-07-2008 05:47:34




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
Go to a welding supply shop and get some TapMagic or thier equivelant. It clear, and thinner than oils, and you will not believe how easy drilling and tapping are with it.



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No Genius

02-07-2008 04:56:16




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
Wow thanks for all the replies guys, I think I'll try some of these out, I have always been the type to use any old oil, like waste oil. Dad always yelled at me for putting water on a hot bit (he said it'd lose its temper) but if you kept it cool to start with that would work great I bet.



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Spook

02-07-2008 03:50:22




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
For drilling in steel, a cheap and good lube is a mix of water and liquid soap. The water cools and provides volume to absorb heat, the soap provides lubricity and is a surfectant, sticking to the tool. For tapping, the same soap, not diluted. This will work for aluminium, but not as well as the kero. Little safer and easier cleanup tho. For threading, a heavy oil is best. Really anything that cools and lubicates is better than dry cutting.

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moonlite 37

02-07-2008 03:28:30




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
Lard



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Gerald J.

02-06-2008 19:28:54




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
Depends on the metal.

While its a little smelly, common hardware store pipe threading oil works pretty good for steel. Nice to have it in a squirt bottle or pump oiler. I've seen fancier stuff but they aren't in the local hardware store.

For aluminum, straight kerosene works good. Its hard to keep in the pump oiler though because it seems to climb up hill.

Gerald J>



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Charles (in GA)

02-06-2008 19:17:33




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
About a year ago Home Depot cleaned out the warehouses in an effort to get some cash flowing. One thing they seemed to have cases of were small bottles, about 8 oz, of Gunk/Solder Seal brand Dark, sulfurized cutting oil. I bought about three or four bottles of it for I think, a buck each. Poured them off into a quart flat metal can with a small spout. Stuff works well for drilling holes on the drill press.

Charles

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Matt Agnel

02-06-2008 19:10:50




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
I have used Rapid tap, Cool Tool, Bostik tapping and cutting oil and I like them all. Also for use on power hand drills and cheap bits I use motomaster tapping lube in a spray can from CT



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Roy Suomi

02-06-2008 18:56:36




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
When I need coolant on my drillpress, I use water..Drillbit cuts like crazy and tool stays cool..A catch bucket under the table..I use an old detergent squeeze bottle..After using water , I give the table a quick spray of penetrating oil to stop rust..



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landlord7012

02-06-2008 18:44:09




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
WD-40 does have it's place in the workshop but not as a cutting fluid. As stated waste oil works but stinks and can be unkind to tooling depending on how it might be contaminated. For a few drilled holes here and there I would use waste too. If you are doing some serious cutting then step into the 21st century and buy yourself a small container of water soluable coolant concentrate. Brushed on or sprayed on from a recycled spray bottle it cools and lubricates.

landlord7012

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landlord7012

02-06-2008 18:47:59




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 Re: Cutting Oils- What do you guys use? in reply to landlord7012, 02-06-2008 18:44:09  
I should add that if you are set on using cutting oil then buy yourself some Castrol "Molly - Dee". Old timer machininsts swear by it. I always swore AT IT when the smoke got in my eyes and nose but it is effective.

ll



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msb

02-06-2008 18:35:23




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
A can of cutting oil won't break the bank and it has stuff in the oil that helps cut the friction. I don't know for sure what it is.I should remember. Maybe senioritis is creeping in on my old head.



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JMS/.MN

02-06-2008 17:56:31




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
Why buy anything? WD40, before and after the reformulation, is nothing but skunk urine. Recycle- use old engine/tranny/gearbox oil.



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rgvtx

02-06-2008 17:50:21




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
I use 90w or 140w oil, it comes in a quart and you snip then end off like a caulk tube. Thick stuff seems to stay on the bit well, but when it gets hot it sure smokes and stinks. Small price to pay to save a good drill bit though.



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IH2444

02-06-2008 17:44:38




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 Re: Cutting Oils- What do you guys use? in reply to No Genius, 02-06-2008 17:13:22  
I have the remains of a gal can of thread cutting oil that was in my workshop when I bought the place.
I will have to read the can to check the brand but it looks ancient and works better than wd40 or antything else I have tried.



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Davis SC

02-06-2008 19:08:15




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 Re: Cutting Oils- What do you guys use? in reply to IH2444, 02-06-2008 17:44:38  
The old stinky Sulphur threading oil is about the best.. Bad thing is, the smell hangs on for days..



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IH2444

02-07-2008 09:34:08




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 Re: Cutting Oils- What do you guys use? in reply to Davis SC, 02-06-2008 19:08:15  
Yep that is the stuff, very stinky.
But nothing better for drilling and tapping and such.



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IH2444

02-07-2008 10:24:38




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 Re: Cutting Oils- What do you guys use? in reply to IH2444, 02-07-2008 09:34:08  
I just checked my cutting oil can. it is Brooks Brothers-that is oil thread cutting oil.
that is what the can sez guys :)



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