There use to be a member here that used to {man that's bad English eh!} sell just the burrs, you have to make your own burr-bolts. I think he went by the handle.. "YORNOC" .. . "CONROY" spelled backwards. There was also another member that made and sold burr-bolts, I think him and his wife both did the engraving on the burrs and did a really nice job. I think he also made knives from "files" and sold them as well. Maybe do a "search" or someone else will chime in...I just can't think of his "handle" right now.