Use a dremmel with a small sanding "drum" on it. I didn't get a picture with one that worked. Cleaning out the keyways should be done using an edge of a flat screw driver. For the center recess ring use a dental type pick. HBF has these. If you do not clean properly you will be doing this again!
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.