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Owns A Torsen
Joined: Mon Sep 18th, 2017
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Some of the coolest running modern inserts are engineered to run at high speed and feed with no coolant (what we call it here in the US). I have a couple, one is a 3/4 triple insert from Sumitomo that I can send in to 4140HT .05 DOC 2800RPM 12/14 IPM and it doesn't get hot. I have some cbn inserts I cannot use coolant on or they will explode. Mostly lathe on those.
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00 XLT 4WD RCSB 3.GO! Jalapeño
01 XLT 2WD RC Steppie 3.0 auto Silver
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