Looks like teh asians have chased Bison out of Victor Machinery.
V. M. may be NOT recommended any more..... they used to be good, selling nice Bison stuff that was well made.
Got a 1/2" MT3 end mill adapter from them last week. Every one of these things I have ever seen has a 3/8-16 drawbar.
Not this no-name but presumably asian beauty...... When I went to use it, I found it has what appears to be a 1/2-13 drawbar thread. And not a nice clean thread, either.
What the %^$#@! is up with THAT?
I have given them the opportunity to replace with a good one, threaded as they state on teh website.....we'll see.
Grrrrrrrrr....... I didn't buy the %^%$#@ thing to look at, I expected it to be usable with standard tooling, AS STATED..... Kinda needed to use it.
Ok, ok, I'm done ranting, it's Ok to return to the normal program now.
The thread appears to be something metric very close to 1/2 inch, with a 2.0mm pitch. I don't think Victor got what they wanted. I know I didn't.