This cutter did exactly what I needed, in particular it allowed me to cut boards 1.5mm thick effectively connect to. " thick without using a jointer. I could use it to get straight edges on four boards, each two meters long, and then glue them together to make a desktop. In that regard, the bit worked exactly as I wanted it to work and had no issues with alignment, sharpening, etc. It worked as advertised. I can't comment on durability as I haven't had a chance to use it for a long period of time. There's no reason to think it won't last (I just haven't been able to test it). Overall I am very satisfied with this purchase.