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Old 08-08-2018, 07:52 AM
Doug S Doug S is offline
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Default Compression bit with short upcut

I read somewhere on the forum about a compression bit with a very short upcut section. I am cutting 1/4" cabinet backs and my 3/8" compression has a 3/16" upcut section. That is not enough fully engage the down cut on the topside. I am getting plenty of splintering.
Someone mentioned a special bit but they said only one company makes it-they just didn't specify which one.
Any advise?

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Old 08-08-2018, 08:03 AM
Ger21 Ger21 is offline
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I'd use a downcut.
But if you really want a compression bit, you can have any sharpening service grind the bottom shorter.
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Old 08-08-2018, 08:12 AM
Tristan Tristan is offline
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I would also use a straight downcut bit, and maybe slow the machining speed down a little. Also play with climb and conventional cut directions, might help a little
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Old 08-08-2018, 08:25 AM
neal_meyers_jr neal_meyers_jr is offline
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Cool

Check with US Router tools ask Joey about the Amana bits numbers 46181 and 46180. These are compression bits that have a 7/32 compression area. They are small shanks but maybe they will work for you.
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  #5  
Old 08-08-2018, 10:17 AM
The real JP The real JP is offline
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I use a downcut a lot of things.

A mortise compression is the one with a shorter upcut section though.
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Old 08-08-2018, 12:55 PM
BradyWatson BradyWatson is offline
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Quote:
Originally Posted by The real JP View Post
A mortise compression is the one with a shorter upcut section though.
Correctamundo :)

Add Centurion to the list too. They've been pretty good for the money.

-B
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Old 08-08-2018, 05:38 PM
srhardwoods srhardwoods is offline
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Southeast Tool SUD448

1/4" compression mortise bit 1" cut length
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