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Discussion Starter · #1 ·
There are several postings here about bit speed.I know when a bit sounds right to acomplish the job safely but am wondering if there is a chart from router manufacturers giving the speed of the router rpm to how fast a bit of a certain size is actyally spinning?
 

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Discussion Starter · #3 ·
Thanks Mike was thinking more like say from hitachi as thats the router I use right now and the speed knob is numbered sequchally not showing actual bit speed thats why i listen very carefully to the sound
 

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Marine Engineer
Doug
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4,960 Posts
RJB,

The speeds are guidelines (kind of like the speed limit to most of us....) so just take your speed range and break it up into the number of marks on your switch. If you round a little here and there, it isn't going to make too much of a difference in the long run. You WILL know by ear if you are spinning a bit too fast.

For example- 8000 rpm to 24000 rpm router with 6 marks on dial would break down to roughly 3000 rpm per mark, or..

1 = 8000
2 = 11000
3 = 14000
4 = 17000
5 = 20000
6 = 23000

Hope this helps!
 

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Something you don't want to get next to. :) :) :) is a good rule of thumb.
Router bits have a voice, so to speak ,it will take some time b/4 you can hear it.

Bj :)
 
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