face mill advice...

[unterhausen]

I was looking at the Glacern face mills, I didn't see where it said what the shank interface was. There are only a couple of face mill holder types, but I wouldn't want to get the wrong one. I have a NMTB 30 taper mill, so that's a bit of a concern for me.

 

[precisionworks]

I was looking at the Glacern face mills, I didn't see where it said what the shank interface was. There are only a couple of face mill holder types, but I wouldn't want to get the wrong one. I have a NMTB 30 taper mill, so that's a bit of a concern for me.

The integral shank tools are made as one piece with r8 arbor. This is what you can't use:

What you want is the same head in a "shell mill" design that accepts any arbor available - straight shank, CAT, NMTB, etc.

All the big suppliers sell the shell mill arbors.

(from McMasterCarr.com)

 

[unterhausen]

the shell mills are on the same page as the fixed arbor, but they only list compatibility with their own arbors. Guess I have to check to see what the arbors are compatible with. I have a shell mill holder, been a while since I checked the specs on it though

on edit: looked up the arbors, looks like up to a 3" shell mill has a 1" arbor hole diameter

 

[precisionworks]

the shell mills are on the same page as the fixed arbor, but they only list compatibility with their own arbors. Guess I have to check to see what the arbors are compatible with. I have a shell mill holder, been a while since I checked the specs on it though

on edit: looked up the arbors, looks like up to a 3" shell mill has a 1" arbor hole diameter

Shell mills & shell mill arbors have been around for decades, predating the industrial use of cemented carbides (1960-ish). I'll go waaay out on a limb and say that any shell mill can be run on any arbor of the correct size. It's interesting that Glacern lists only R8 & CAT40 arbors, but that covers everything Bridgeport & also covers the most popular V-flange in use today.

30 taper shell mill arbors are available in 3/4", 1" & 1 1/4" as well as metric diameters (not interchangeable). NMTB30 is more popular on the other side of the ocean & you can often find some on eBay like these eight listings.

 

[unterhausen]

turns out I have a 1" arbor, so I'm good to go