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Old 2nd April 2005, 04:23 PM   #1
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Default roundover bit - inch and a quarter radius

I'm looking at finding a large roundover bit to finish off the edges of my sub, either 1/4 or 1/2 shank with a cutting radius of an inch and a quarter.

Prices in the UK are ludicrous for tehse bits, and I wondered if anyone could suggest an alternate, say maybe in the US or any other country that may ship to the UK and order online ?
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Old 2nd April 2005, 09:49 PM   #2
AndrewT is offline AndrewT  Scotland
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Hi,
I used a plane and a surform followed by lots of sanding to round over my ash front panels to 30mm radius.
I couldn't afford the bit either!
Do you realise that the bit will have a diameter of about 70mm to 80mm and will take some driving?
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Old 2nd April 2005, 09:57 PM   #3
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check with www.leevalley.com - very reasonable prices and thats were i source my special tools from.
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Old 2nd April 2005, 10:01 PM   #4
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These bits may not seem that cheap, but if you look after them, they will probably last for the rest of your life!

Though Andrew's method will work, if you cost out the time it takes you, you will be saving by buying the right tool.
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Old 2nd April 2005, 10:27 PM   #5
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To make it really easy - and lee valley ships worldwide:

http://www.leevalley.com/wood/page.a...10&cat=1,46168
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Old 3rd April 2005, 09:10 AM   #6
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Superb, thanks for the help guys.
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Old 3rd April 2005, 10:29 PM   #7
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Given the radius, you might want to consider finding a professional shop, or a well equipped amateur shop (maybe a school too) with a shaper table? A better choice than a hand held tool for larger cuts like the one you want to make...

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Old 4th April 2005, 02:52 PM   #8
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Not 1-1/4" but here's a 1"
http://iseek.com/Projects/omnicat5/index.php?cat_id=0
Most of my bits are from Jesada and Freud. Very good quality and not too expensive. You may want to contact them and see if they have a 1-1/4 available.
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Old 4th April 2005, 03:04 PM   #9
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you might be able to find something like these mdf quarter rounds to save yourself a lot of dust. (2" or greater radius) http://www.aitwood.com/catalog_l_quarter_rounds.htm

If you go for the 1.25" radius bit, use a >2 HP 1/2" shank variable speed router to minimize chatter. I've used my variac to slow down my fixed speed router. I bought a 1.25" radius bit from www.grizzly.com for around $40, it worked well, but the bearing didn't last long, so buy a few spare bearings if you go that route.

I agree with Bear - something this big is scary. I made a plywood fence/guide that pretty much turns my router into a router table without legs. I still keep the work between the bit and my body.
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Old 4th April 2005, 03:11 PM   #10
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I didn't think of that, it's a neat idea, thanks.
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