How many mower blades do you sharpen in a week? I know they make them, but I never have seen them advertized or talked about are automatic blade sharpeners. Maybe this is because most of us are smaller companies and cannot afford them. I saw one that was automatic but didn't get brand name but was told it cost around $6000.00 . I sharpen around 45 blades minimum a week. I wonder what number of blades does this bigger grinder begin to pay off. I was told the way this grinder worked was you put the blade on a balancer then mount the heavy side in fixture, it then grinds that side and then I don't know if it turns automaticly or you switch it but it then grinds the other side to the side that was just ground.