Mine is a "0" grind , (no secondary bevel , or a tiny microbevel from final stropping) . Mine was very dull out of the box , I got a piece of plate glass I use for truing up waterstones , I loaded the plate with an abrasive slurry , and worked the whole bevel ( full contact between bevel and glass ) , I used a strop to de burr the back edge . YMMV . Any shop that sharpens machine knives should also be able to help you out .
If you have any contact with custom knifemakers , they might be able to help you with a buffer , I sharpen lots of stuff on a buffer , but a machine knife is way too scary for me ( nothing safe to hold onto ) .
Chris