Question: A little help on Magnablock dimensions?

[mitch]

Hi everyone-
I’ve been working on a new pair of vise jaws for my GRS Magnablock and thought I’d make a few extra sets when it’s ready (translation: when I finally quit tweaking the design). My question is, since my vise is over 40 years old are the T-track dimensions still the same? I don’t want to bother having more machined only to find out they don’t fit anyone else’s newer vises. I would be most appreciative if a few of you folks with newer models of the full-size Magnablocks could take a moment to measure yours and “confirm or deny” my dimensions in the attached photo.
THANKS IN ADVANCE!

 

[Craig]

I checked mine and it is almost the same. 1.113 instead of 1.115, .482 instead of .480, .519 to the center of the bolt and the other 2 numbers are the same. My Magnablock is 19 years old.

 

[mitch]

I checked mine and it is almost the same. 1.113 instead of 1.115, .482 instead of .480, .519 to the center of the bolt and the other 2 numbers are the same. My Magnablock is 19 years old.

Thanks! I’m guessing they haven’t been changed (no reason to), and it looks like I can safely assume that as long as the dimensions are kept on the tight side they should fit fine.