Found a place in the US by the name of Harry Epstein that I can order from online. Looks like a family run place. They have all kinds of tools etc and have a huge selection of US made burrs. Quality is good and best price I could find. When I put an order in I usually get a couple years worth of burrs.
I go to a place formerly called moore industrial and now called source atlantic ( garry moore sold out company ) They supply many of the bigger manufacturing outfits in the prairies . They can even get your old carbide burrs resharpened but at half the cost of new ones and they will be a smaller diameter . They are in Winnipeg , Regina , Saskatoon , Calgary , and Edmonton .