Round over cast iron?

[Osvaldo Cristo]

Best and neatest way to round over cast iron? My scmi Jointer is a long bed, but I often do long stock and when I tip it down at the end I get a mark on the wood from the square edge. I want to round it over but an fussy about looks so not into the grinder so much. Could do it with a file, but I am lazy. Ideas?

What about to use a grinder but not with so aggressive disks? I would look to use with it a sanding disk 80 or 100 grit...