Life of collet?

Question

Had spiral 1/2" bit play ARHA in a Makita 3612BR today. Bought 5/93 but surprised at slipping which brings the question is there a nominal/typical lifespan for them? Do solid carbide bits have a tendency to slip?

Frank Nakashima · Accepted Answer

Have you cleaned the collet and or shank since you've owned them?  Thereis some periodic maintenance required to keep everything operatingnormally.

CW · Answer

You probably know this but I have to ask, did you make sure that it was notbottomed out when you put it in the collet? If that's not he problem,sawdust or other substances in the collet will cause problems. Also, measurethe shank. Undersize shanks are not unheard of.

JGS · Answer

I had a similar problem with slippage in a different brand of router.One of the fingers in the collet had fractured (and only became obviouswhen I removed the nut and looked closely). That router had had a lot ofuse. Cheers, JGBob Bowles wrote:

Bob Bowles · Answer

I bottom and pull out about 1/8" ALWAYS after the Crapsman ARHA wentthrough 3/4" stock.  Frank mentioned cleaning but it hasn't been doneas I'm unsure of material and steps.  Suppose alcohol or acetone couldbe first steps and don't see how thet would hurt.  Will do today,thanks Frank.

Routerman P. Warner · Answer

Spiral bits are screws. There are constantly being pulled out of the collet when in contact with the work. Down spirals are being pushed up. If the collet is loose, (probably at a torque safe for most cutters), they will pull out! The hidden vector, notwithstanding, they are risky tool bits.

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Phil · Answer

I regard collets as consumables and replace them every couple of years.PhilBob Bowles wrote:

Life of collet?

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