Champer cutter arbor

**Frank S** · Dec 1, 2021, 11:31 PM

I recently bought a small box of these 37° champer cutters, though there were no arbors to mount them in.
Today I needed to form a champer for a -6 SAE oring boss fitting.
Here is what I made the arbor out of
U took a 1/2" socket head bolt then turned the head then drilled and tapped to accept the cutter then cut the threads off the bolt.
These bolts are hardened and usually grade 9 just about as close to being tool steel as you can get

Champer cutter arbor-img_20211201_095816ch.jpg

Champer cutter arbor-img_20211201_105012ch.jpg

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Champer cutter arbor-img_20211201_110221ch.jpg

**DIYer** · Dec 2, 2021, 04:20 AM

Thanks Frank S! We've added your Chamfer Cutter Arbor to our Metalworking category,
as well as to your builder page: Frank S's Homemade Tools. Your receipt:

Chamfer Cutter Arbor by Frank S

tags: arbor, chamfer, cutter

**BuffaloJohn** · Dec 2, 2021, 11:22 AM

Do you mean Chamfer?

**Frank S** · Dec 2, 2021, 11:59 AM

Originally Posted by BuffaloJohn

Do you mean Chamfer?

isn't voice type great?

**BuffaloJohn** · Dec 2, 2021, 01:01 PM

yup, that's why I never use it. I have heard the results from my 90 year old Chinese mother-in-law trying to use it - painful... and completely unsuccessful...

**Catfish** · Dec 3, 2021, 09:27 AM

nicely done.

**mwmkravchenko** · Dec 3, 2021, 09:08 PM

Simple and effective. What's not to like?

**Cdronbrn** · Dec 5, 2021, 05:40 PM

I worked for the large American aircraft company on the Pacific Northwest for many years. Don’t know if you knew or was interested but thought I would show you what these countersinks were made to work with. If you already know - sorry. But if not, here you go…

Champer cutter arbor-cf22d4ca-3615-4e27-be68-314158b3ce93.png

**Frank S** · Dec 5, 2021, 07:03 PM

Originally Posted by Cdronbrn

I worked for the large American aircraft company on the Pacific Northwest for many years. Don’t know if you knew or was interested but thought I would show you what these countersinks were made to work with. If you already know - sorry. But if not, here you go…

Click image for larger version.

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I have maybe a couple dozen or more of these countersink cutters all had been reground before I got them some in 22.5° some in 37°, 45° and 1 in 65° at least 6 different diameters and 4 different thread sizes.
I had not seen those micro stop holders but apparently that company only offers a limited selection of tooling specific for their target market.
Thanks for the info though.
I used to own a wide selection of cavity forming tools ranging from SAE #2 through SAE#32 single cavities for o ring boss fittings or poppets, through 5 stage cavities for poppet and spool type cartridge valves Not every configuration obviously, and our tooling grinding department often would make our own for us.