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12.7mm v 1/2" ROUTER BITS

5.2K views 7 replies 6 participants last post by  ggroofer  
#1 ·
i HAVE A TRITON ROUTER THAT TAKES 12.7mm ROUTER BITS WHICH IS SUPPOSED TO BE EQUIVALENT TO 1/2" ROUTER BITS. HOWEVER THE 1/2" BITS ARE LOOSE IN THE TRITON. WHY IS THIS?
 
#3 ·
Greetings and welcome to the router forum. We are pleased to have you join us.
 
#4 ·
Hi

The short answer is they shouldn't be loose, as 12.7mm is 1/2".

Because some countries are officially metric and anything for sale in them is supposed to be described in metric dimensions, things that are made as 1/2" have to be decribed as 12.7mm but they are exactly the same dimension.

Is your collet tightening properly or is there some muck in the threads preventing it going all the way?

Cheers

Peter
 
#7 ·
I have the same problem except the other way round,the trend 1/2" bit I bought is to tight in the triton collet! Phil.
It sounds as if you may have been supplied with a 12mm collet instead of a 1/2"(12.7mm) one. Unless you've got a 12mm shank bit, or more likely a 12mm shank drill, to use as a gauge, it may not be easy to tell.

Cheers

Peter
 
#6 ·
John and Philip, sounds like you guys should exchange bits or exchange collets:)
Seriously, try to get ahold of some calipers and measure the bits and collets to see just where you are on the things. Is it my imagination or has this been happening more frequently in the last 6 months or so. :confused: