Thank you for the kind offer, My issue is that I need to find actual bar stock as the ears on the vise are a tad ove the ends of the milling slide so my plan was to drill a solid piece on either end to hold the vise in place so it doesn't chance snapping the ears of the T channel off. But Thank you very much for the kind offer. I may just get another vise. 2 1/2 inch if I can find one rather than using this one. Or try with the 2" aluminum vise and try to make them but that aluminum one doesn't have the rigidity. Doing is learning thoughTop of t = .368
Bottom of t = .628
Length of block = .895
5/16s threaded hole
If these will work out for you , let me know , FAST , while I have them in my sights !