Glenn Posted April 22, 2007 Share Posted April 22, 2007 What cutting oil would you suggest and why? Can high(er) speed cutting and hand speed cutting use the same cutting oil? Quote Link to comment Share on other sites More sharing options...
tecnovist Posted April 28, 2007 Share Posted April 28, 2007 Hi --i would get a drill press some old drill bits and try out your cutting oil that you have and see what works best.... Quote Link to comment Share on other sites More sharing options...
HWooldridge Posted April 28, 2007 Share Posted April 28, 2007 There is a lot of info on this in the world of machining - I work in a production lathe shop and get to see this daily. The main purpose of the fluid is to keep the tools or work from burning so the major advantage is cooling. Sulfur is a primary ingredient to provide lubricity so anything you buy with sulfur additives will help on some materials. IIRC, cast iron should be drilled dry but most other materials benefit from some type of cutting fluid. Plain water works pretty well and even better with a bit of soap added. In fact, many shops have switched to water with some sort of lubrication and biocide added to prevent algae growth. Quote Link to comment Share on other sites More sharing options...
irnsrgn Posted April 28, 2007 Share Posted April 28, 2007 After many years running my own job shop doing smithng, welding and machining, I have found that the newer clear cutting oil has a tendency to bind or gaul up when used for cutting threads in a designated machine, and will make milling cutters stop cutting till it gets enough pressure to gouge in and start cutting again and sometimes it ends up breaking the cutter. I went back to the old dark cutting oil as it makes the cutting tools last longer. Any production machine a constant flow is needed to keep the tool cool. Tap Magic is the best for machining or drilling SS. And the old timers used kerosene for drilling cast iron. Most of the time water is just as good as oil. and for end mills and woodruff key cutters I just use a little air pressure on the tool to keep the cuttings from building up and to keep the tool cool. Alumicut is used for drilling and taping Aluminum. Quote Link to comment Share on other sites More sharing options...
Ten Hammers Posted April 28, 2007 Share Posted April 28, 2007 I have been using some stuff from the farm store made by the LACO company. Gallons. Nice dark brown and fair thick. Really excellent for drilling and tapping and the price is good. Tap Magic is good stuff too. I have no machines with sumps. My usage is from a squirt bottle. Quote Link to comment Share on other sites More sharing options...
canman Posted April 29, 2007 Share Posted April 29, 2007 Hello everyone, I have been doing machine work for 25 yrs. I have tried a lot of the commercial fluids and have had some that were actually pretty good. My favorite cutting compound is lard ( not Crisco) and sulfur. This works great for tapping and drilling. It has an unpleasant smell but I like its performance. It is worth dealing with the smell. Whether it is a fluid or paste is determined by the ambient temperature. If you need a fluid just heat it up. Besides being the best, it is probably the cheapest. canman Quote Link to comment Share on other sites More sharing options...
tatanka Posted April 30, 2007 Share Posted April 30, 2007 I ran lg. turning machines and we used a water and oil mix to cool our tooling. I always used the same thing for drilling and tapping, seemed to work well. but remember speed is very inportant. Quote Link to comment Share on other sites More sharing options...
tecnovist Posted May 3, 2007 Share Posted May 3, 2007 I was serprised at how well Jiff worked ok a don't know how good it was for the cutting tool / drill Quote Link to comment Share on other sites More sharing options...
kustomrod Posted May 3, 2007 Share Posted May 3, 2007 We use Molyslip MCC at work for drilling and tapping. Couldn't find much info on it that wasn't in German. We also use a water/cutting compound mix in the lathes, radial arm drill press and band saw. Quote Link to comment Share on other sites More sharing options...
Glenn Posted May 3, 2007 Author Share Posted May 3, 2007 Thanks for the help. Quote Link to comment Share on other sites More sharing options...
Ferrous Beuler Posted May 11, 2007 Share Posted May 11, 2007 What cutting oil would you suggest and why? Can high(er) speed cutting and hand speed cutting use the same cutting oil? What is the recomended coolant to use while drilling holes in cast iron. I havn't ever had to drill any cast but have been warned not to use cutting oil. So what should I use? I'm thinking drill press and hand held squirt bottle. Thanks! Dan:) Quote Link to comment Share on other sites More sharing options...
Jim Pennock Posted May 12, 2007 Share Posted May 12, 2007 What kind of drill are you using, how big? KOOLMIST isn't too bad for using in a squirt bottle. And it's not too expensive, AW32 is ok too if you really want oil and you can get that to come through a squeeze bottle. Jim Quote Link to comment Share on other sites More sharing options...
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