Came home earlier this week to find a package in my mailbox from my saintly mom. She bought this Case folder last year at the hardware store to use for opening mail. As I recall, she chose it because it was the easiest blade to open of those she tried. Not sure what model it is, but I kind of like it. The liner lock is not as robust as my other folders, but should be okay for light duty. I put it on the strop and the thing is razor sharp. Nice gift, Mom - I'll give it a good loving home. :thumbup: