Grade TT8115 TT8125 SNMM HZ CHIPBREAKER NEGATIVE SQUARE INSERTS FOR HEAVY ROUGHING 90° d R l t ANSI ISO feed ap l d t R Number Number (ipr) (inch) SNMM866HZ SNMM250924HZ .043 (.024-.059) .394 (.138-.630) 0.906 1.000 0.375 0.094 =P =M =K =N =S =H 930