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Picked flood coolant over mist on the 4140 job in Toledo and my inserts quit chipping
Ran a batch of 4140 shafts for a shop in Toledo last month and had to decide between flood coolant and a mist setup on the lathe. Went with flood after the tool rep pointed out my insert edges were breaking down from heat, and finish cuts cleaned up a lot. Curious what you all run on tougher steels, does mist ever hold up for you or is it flood every time?
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