There's a place in Ferry Steps Industrial Estate just off Albert Road by the Dogs & Cats home that used to do all my blades when I was in Bristol.
If they are still going, but try them on 0117 977 8808 - Leitz Tooling I think.
This was for circular saw blades though, no idea if they can do what you are after. They were slightly cheaper than what I pay now through N&B in Weston.