This jig is easy to use and perfect for keeping the scythe blade edge sharp (peened).
Peening is hammering the blade, first to extrude a bit more metal and then to flatten it so it becomes very sharp.
This peening jig is great, your can use any hammer. and you can keep the blade good and sharp.
Very good and easy to use by beginners.
Downside: it is not so good for repairs.