In a machine having a tool for cutting or grinding operating at elevated temperatures reached because of friction created during cutting or grinding, said machine having provisions for supplying and directing {HEAD ~ a coolant} over {TAIL ~ the tool}, said provisions for supplying and directing said coolant comprising: 
In a machine having a tool for cutting or grinding operating at elevated temperatures reached because of friction created during cutting or grinding , said machine having provisions for supplying and directing { HEAD ~ a coolant } over { TAIL ~ the tool } , said provisions for supplying and directing said coolant comprising :
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