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Lawrie Alush-Jaggs	07/08/2012 10:38:08
118 forum posts 32 photos	Hey Bogs....... Of course one builds a Forth Bridge over a ditch, why else is the ditch there? Come to think of it, why does this hobby exist if not to overengineer anything at all
Bazyle	07/08/2012 13:02:14
6956 forum posts 229 photos	Bending the topic slightly - Should the aim be lubrication, cooling, or swarf removal? In my view it can't get at the cutting point to lubricate anyway, only production rates should need cooling, but swarf removal helps, at least for milling. I know small quantities can seem to improve cutting but I feel that is probably just compensating for poor tool design.
KWIL	07/08/2012 14:52:52
3681 forum posts 70 photos	There are numerous cutters that are designed to be run dry (and they also give a very good finish). If you want coolant and chip clearance, use an air mist with neat oil, a lot cleaner than any other combination.
Jon	08/08/2012 01:06:12
1001 forum posts 49 photos	Tried a Noga mister last year when coolant went down on me for second time. Ok for general light turning, anything else boring, threading and milling no match for a proper coolant system. Its also messier as chips are not washed away rather just builds up on the job or in in it. Cant turn pressure up, it then becomes airborne and harmfull. Needless to say its relegated and unused.

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