Hi Mathius!
First of all, Happy Holidays to you, your family and Friends!!!
I looked at the website and scrolled down to the bottom of the page.
It reads: 0.25" strap (flat bar how wide of a limit?), 0.25 round in grooves (I believes he's talking about the grooves on the rolls) and 0.125" sheet "easily" according to the page.
Hope this helps...
Respectfully,
SSBN727 Run Silent... Run Deep!!!