Tube Bead Roller HELP

[scratchedup]

I just got these from Graham Tools. I think they used Parker tooling to manufacture these.



There were no instructions except what is on their site. Not a big deal but they do have the old Parker instructions there.


On #2 there is discussion of size 4, 6, 8, 10, 12, & 16.

Can some one enlighten me as to what these sizes are.....is #4 ☛4 1/16" =1/4"?

THX

Also there are numbers on the ends here-

This one says-
1/4"
H13
4

Help here plz.

 

[454ragtop]

The numbers are the AN (Army, Navy) designations, and as you guessed they can be converted by multiplying by 1/16".
Jim

 

[scratchedup]

Thanks.
I just called Brian at Graham. The H13 is the metal type...very hard.