sharpening router bits

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Forum topic by woodman88 posted 01-19-2013 02:53 AM 1395 views 0 times favorited 6 replies Add to Favorites Watch
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144 posts in 2824 days

01-19-2013 02:53 AM

after doing a Red oak bed project, having about 80 1/4 in deep 2in wide mortises went through 2 brand new Whiteside bits.What are your guys methods of sharpening? I cleaned the pitch after 3 cuts but didn’t help much.

6 replies so far

View Ripthorn's profile


1458 posts in 3160 days

#1 posted 01-19-2013 03:00 AM

If it is a spiral bit, send it out to be sharpened. If it is straight fluted, you can get diamond sharpening paddles and do it yourself. Just make sure you do the same number of swipes on each surface, and only sharpen the flat (not bevelled) side.

-- Brian T. - Exact science is not an exact science

View MonteCristo's profile


2099 posts in 2364 days

#2 posted 01-19-2013 03:49 AM

It sounds like those Whiteside bits might not be the best. I tongue and grooved thousands of feet of knotty cedar with CMT bits that are still sharp. It’s worth noting that not all carbide is created equal.

-- Dwight - "Free legal advice available - contact Dewey, Cheetam & Howe""

View NiteWalker's profile


2738 posts in 2752 days

#3 posted 01-19-2013 09:16 AM

That’s odd; I’ve used whiteside upcut spirals for mortices for the past few years and they cut literally hundreds of mortices in all kinds of wood ranging from poplar to purpleheart. Most often in maple and walnut.

Which spiral are you using?

-- He who dies with the most tools... dies with the emptiest wallet.

View Loren's profile


10477 posts in 3823 days

#4 posted 01-19-2013 09:19 AM

You are using upcut, downcut, or straight cutters?

View woodman88's profile


144 posts in 2824 days

#5 posted 01-19-2013 01:38 PM

Ishould have not called it a mortise more of va dado after you glue two halves together you get a mortise anyways I was using a straight cutters

View JesseTutt's profile


854 posts in 2286 days

#6 posted 01-19-2013 03:50 PM

I have never sent a bit out but I have been told that some saw sharpening services will also sharpen router bits. I have a neighbor that works for Boeing in their machine tool department and he sharpens my router bits. So, you might check with a local machine tool shop, just make sure they know what they are doing.

-- Jesse, Saint Louis, Missouri

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