Feather Processing Jig by Great Northern. Grind your own feather with this processing jig. Finally a feather grinding system that precision grinds both the base and the side of the quill in one set up. Great Northern Feather Grinding System comes complete with a precision jig, drum sander, and instructional DVD video. Simple to use, the average operator can grind one feather per minute. It handles both left and right wing, turkey, goose, and everything else you can get your hands on. Requires a drill press capable of speeds around 2000 to 2500 rpm's.