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Forum topic by bmwrider1 posted 10-27-2011 06:50 PM 1407 views 0 times favorited 8 replies Add to Favorites Watch
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bmwrider1

14 posts in 1158 days


10-27-2011 06:50 PM

Will someone explain to me about round over bits? When do I use a 1/4 or 1/2 inch round over bit. I am exploring how to use a router.


8 replies so far

View David Grimes's profile

David Grimes

2072 posts in 1306 days


#1 posted 10-27-2011 07:03 PM

The roundover bits will all have the cut radius and cut depth noted on the package. The 1/4” cut radius (like a quarter round of a 1/2” diameter circle) is a smaller roundover than the 1/2” (which is like a quarter round of a 1” diameter circle). The cut depth is the height of the radiused cut on your work piece edge.

Go to a big box and compare the two drawings of the exact cut profile shown on the box and you’ll get it.

Have some fun.

-- If you're going to stir the pot, think BIG spoon or SMALL boat paddle. David Grimes, Georgia

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ksSlim

984 posts in 1556 days


#2 posted 10-27-2011 07:14 PM

Grab a piece of stock, gives you 4 edges to try different sizes full depth.
Hang it on the wall as a reminder of what size does what profile.

-- Sawdust and shavings are therapeutic

View CharlieM1958's profile

CharlieM1958

15702 posts in 2884 days


#3 posted 10-27-2011 07:31 PM

What David said. Or just go to any of the major woodworking catalogs… they pretty much all have profile diagrams.

Keep in mind that you can also vary the look of your cut by varying the depth. You can either have a perfectly rounded edge, or set the cut a little deeper and leave a lip.

The best way to learn is by actually making some cuts and playing with the settings.

-- Charlie M. "Woodworking - patience = firewood"

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gfadvm

10981 posts in 1356 days


#4 posted 10-28-2011 04:07 AM

Those 2 bits can also be used to make your own 1/2” and 1” dowels useing a router table. The Grizzly catalog has pages of router bits and the profiles they produce. FYI roundover bits are not hand tools. You might get more replys in the power tool forum.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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ocwoodworker

204 posts in 1670 days


#5 posted 10-28-2011 04:43 AM

Or are you talking about the shank? A smaller 1/4” shank is good when you have a small round-over bits. When you start to get into some beefy round-overs ( or any bit that has an overall profile bigger than 1/2” is my rule of thumb) it’s better to step up to a 1/2” collet. It has less vibration which in turn give a cleaner cut.

-- I'd like to believe Murphy's Law haunts my woodshop, because if it's Karma it would mean I had something to do with it. - K.R.

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bmwrider1

14 posts in 1158 days


#6 posted 10-28-2011 05:23 AM

I have not bought any bits at this time so I am thinking the 1/2 will be the first one. Are the Whiteside bits a good purchase? I will get the 1/2 inch shank.

View David Grimes's profile

David Grimes

2072 posts in 1306 days


#7 posted 10-28-2011 06:07 AM

All well and good, but the 1/4 shank might be the better first bit if you have a small router to run it. Cheaper, less mass, etc. Make sure the collet is tight. If you’ve ever launched one, you’ll be sure from then on.

-- If you're going to stir the pot, think BIG spoon or SMALL boat paddle. David Grimes, Georgia

View ocwoodworker's profile

ocwoodworker

204 posts in 1670 days


#8 posted 10-28-2011 06:06 PM

Whiteside are made in the US. Good purchase. MLCS… stay away from! The cheap price is enticing but they are china crap. They dull after a couple of passes and are mostly out of balance which causes the router to vibrate and make it hard to control. Rockler makes ok bits but made in Tiawan. They are made to US quality. Just not made in the US.

-- I'd like to believe Murphy's Law haunts my woodshop, because if it's Karma it would mean I had something to do with it. - K.R.

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