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Discussion Starter · #1 ·
Hi. I am new to the forum and having conducted unsuccessful searches have decided to place my question here. I have a Triton 1/2" router with a 1/4" collett. On a number of occasions I have had either the whole 1/4" collett pull out of the router, or have had the cutter pull out of the 1/4" collett. The router at the time is being used on hardwood at the highest or second highest speed. Has occurred with both dovetail and straight cutters. Any ideas?
 

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Discussion Starter · #4 ·
Thanks for the replies. Both the 1/2" and 1/4" colletts are new. Replaced about a week ago to try and resolve the problem. At least they were replaced under warranty. won't be able to check the measurements until tomorrow. Will keep you informed.

Bob
 

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Discussion Starter · #5 ·
I have just measured the shank on two 1/4" CMT cutters. They each measured 0.2485" diameter. The inside diameter of the 1/4" collet is 0.245" while the outside is 0.4985. The inside diameter of the 1/2" collett is 0.490 and when tightened up this closes to 0.481". More than enough to clamp the 1/4" collet. To tighten the 1/2" collet to 0.481" I really had to apply some pressure. I am starting to wonder if I have not been applying enough pressure. I was always lead to believe that one should just "snug" the collet around the shank. I will have to wait until the weekend to do some more tests. Will post the results.
 
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