2.25" R roundover bit

[Travis Gudenkauf]

Does anyone know if a 2.25" R roundover with a .5" diameter shank is out there? I usually have this stuff custom made but am in a bit of a hurry.

[Joe Jensen]

That sounds like a very scary bit. I think the diameter would be 5" (2.25" + 2.25" + 1/2"). I'm not sure I'd want that on a 1/2" shank.

I had to do some 1.75" radius corners years ago when I was young and broke. I was stumped. My dad showed me how to do it very quickly. I sawed the large excess off, and then used a template and a rasp. I was able to do about 8 feet very precisely in about 4 hours. Back then, the 4 hours was much less costly than a new bit...joe

[scott spencer]

I don't know of anyone who makes a roundover that big (doesn't mean it doesn't exist...), but Price Cutter has an unusual molding profile that has a 2.25" radius as part of the profile....in a pinch, maybe you could make that work....it's on sale for ~ $32.

See item from this list: P14-3637 "N" (http://pricecutter.com/architectural-molding-cutters/p/P14-3489/)

85509

[David DeCristoforo]

2 1/4" radius is a HUGE bit. I have a 2.5" radius shaper cutter (for shaping rounded cabinet end panels). It has a 1.25" bore and it weighs a ton. Even on a spindle that big, it's quite intimidating to run!

YM

[Peter Quinn]

I have spun an 1.5"R quarter round and I believe that was the largest diameter bit that wood fit in the PC speedmatic. It was also the largest bit I would consider using in a hand held router.

Is this for a CNC? I would think a cutter that big would require at least a 3/4" shank.

[Travis Gudenkauf]

Thanks for the input guys. I went ahead and had the bit custom made even though I don't have the time. Because the surface that I need this R on is only 1.17" I was able to draw up a bit that ended up being 3.04" in overall D. The actual cutting surface of the bit itself is around 1.50". The Price Cutter bit could be used with a tilting router base or some sort of angled tool. I will look into that, it's much cheaper than what I did.

T