Round over bit usage

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Forum topic by siouxdawgs0409 posted 09-06-2010 05:15 AM 1230 views 0 times favorited 4 replies Add to Favorites Watch
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111 posts in 3300 days

09-06-2010 05:15 AM

I just want to make sure I am understanding this right. I want to set up a round over bit in my router table so that I can completly round the edge of a 1/4 inch thick piece of stock. Would look like a half circle on the end. Am I right to use a 1/8 inch radius RO and make two passes, one on each side? First side will be done with either fence or bearing but the second will be done with fence for sure. Setting the fence even with the bearing.

4 replies so far

View PurpLev's profile


8547 posts in 3854 days

#1 posted 09-06-2010 05:20 AM

yup. if you align the fence with the bearing then you don’t even need to worry about the bearing being there as you’ll be guided completely by the fence.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View BertFlores58's profile


1698 posts in 3128 days

#2 posted 09-06-2010 06:12 AM

I do it also on portable routers using the side guide added with a straight piece of wood. Sharon is right you dont need the bearing. Sometimes I do take out the bearings. I had made a curtain rod of 1/2 inch diameter using a 1/4 R round over bit by 4 passes using the side guide. But be careful.

-- Bert

View richgreer's profile


4541 posts in 3280 days

#3 posted 09-06-2010 02:38 PM

You’ve got it right.

An alternative to consider is a bullnose bit that will do the complete edge in a single pass. Since I own some bullnose bits, that is my preference when doing a job like this. If you were doing a high volume of rounded edges, a bullnose bit may be justified.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

View Gene Howe's profile (online now)

Gene Howe

11079 posts in 3634 days

#4 posted 09-07-2010 02:33 PM

To add to Rich’s suggestion, using a bull nose is also a table router operation.
I know…I know, it’s obvious, but you never know….:-)

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

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