It’s not uncommon for a shop to dedicate a lot of effort to selecting the best toolholder for a particular machining application. After all, the type of toolholder, optimized for the job, can be as important as the quality of the toolholder and can significantly influence the results of the machining process.
Perhaps it’s obvious, then, that for a toolholder to perform at its best, it should be in proper working order. The people at Techniks Inc. suggest that once a toolholder is in place, it should still be examined periodically for wear, checking to see if it needs to be replaced to maintain cutting performance. And this responsibility would typically fall on the operator.
Techniks offers an online document ("Machinist's Guide to Toolholder Maintenance," PDF format) that provides a detailed process for instructing operators on how to properly evaluate toolholders to be able to recognize when replacement is necessary. Illustrations help the reader learn to identify potential problems such as fretting on a toolholder and scoring on a collet. Proper care and awareness help to prevent premature cutting tool failure and even expensive spindle damage.
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