Bull Nose Endmill

Karl_T · Mar 14, 2016

I'm looking for a bull nose end mill. That is an endmill with a round chamfer on the corner. It needs to be 3/8 diameter with a 1/8" radius on the bull nose.

I found one with a .062 bull nose on eBay
http://www.ebay.com/itm/Brand-new-N...915181?hash=item1eacc9a5ad:g:WlQAAOSwFNZW02PU

no joy at enco or MSC, unless it goes by another name.

Ideas?

JimDawson · Mar 14, 2016

Here ya go.......

http://www.the-carbide-end-mill-store.com/20m5/corner-radius-end-mills.html?i2511035:page=6

Karl_T · Mar 14, 2016

Thanks, and the price is right.

AirWolf · Mar 14, 2016

Might take a look at these...

I have purchased several items from various merchants on this site - every one of them has been excellent quality... and they have a satisfaction guarantee on everything!

http://www.aliexpress.com/wholesale...160314182444&SearchText=3/8+bull+nose+endmill

chevydyl · Mar 16, 2016

I would talk to cgs tool, American made and great prices, awesome tools, they are my go to

mixdenny · Mar 16, 2016

Karl_T said:
no joy at enco or MSC, unless it goes by another name.

Yeah, it is a corner radius end mill. Not the same as a bullnose, which has a larger radius profile than the diameter of the cutter. I see full round over profile called bullnose but that is not correct.

images?q=tbn:ANd9GcQUF6gIi9QPHs032tbE6RoRgk2s1emAHvF8gfvpMiNMObstKP7y.jpg

Dennis

Bill Gruby · Mar 16, 2016

Got a Grind Shop Close by or a friend with a Cutter Grinder? Take a 3/8 end mill to them and explain what you need. It's an easy grind job.

"Billy G"

Karl_T · Mar 17, 2016

I have the tool grinder. But it sure didn't look like an easy setup to me. I suppose i could have figured it out. But for sure, not to save $20.

Karl

4GSR · Mar 17, 2016

Yeah, you have to have a radius grinding attachment for your T & C grinder to put a corner radius on the endmill. And it takes someone really good to perform the grinding operation. I have the attachment but never tried it.
Most of your professional grind shops now days have CNC grinders set up that do this and make complete endmills from scratch using a blank. Not too badly priced if you buy in quantities. Onesies and twosies can get pricy.

bfd · Oct 23, 2016

I have hand ground a radius on an endmill when I needed one and didn't have one. used a radius gauge. It cut but it wasn't a pretty finish. but it worked for the job. pump still running 10 years later. who knows might fail tomorrow. good thing I'm retired

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Bull Nose Endmill

Karl_T

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JimDawson

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bfd

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