Up until now every razor I saw with medium Grind was a 5/8 blade but the last 2 razors with medium grind on the blade turned out to be 6/8. would medium grind be 1/2 hollow or what. Still new at this and learning every day. I once told a friend who for sure knows more about this than I do not to be kind and just tell me I don't know squat. As long as I learn from it. I like to buy any where I can and lately it's off the bay and clean the razor hone it shave with it enjoy it for a while then sell it to chase another. I'm retired and enjoy keeping active at some thing. You can't fish and hunt all the time. Anyway thanks.