sharpening router bits

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Forum topic by woodman88 posted 590 days ago 700 views 0 times favorited 6 replies Add to Favorites Watch
View woodman88's profile


116 posts in 1285 days

590 days ago

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


750 posts in 1621 days

#1 posted 590 days ago

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


2095 posts in 825 days

#2 posted 590 days ago

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


2710 posts in 1213 days

#3 posted 590 days ago

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


7463 posts in 2284 days

#4 posted 590 days ago

You are using upcut, downcut, or straight cutters?


View woodman88's profile


116 posts in 1285 days

#5 posted 590 days ago

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


803 posts in 747 days

#6 posted 590 days ago

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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