- Joined
- Apr 12, 2009
- Messages
- 13,433
If OWE is right (and he generally is IME) and the stones are glazed or clogged, you might try scrubbing them with Comet and either a scotch brite pad or old tooth brush.
That'll clean them if they're clogged with swarf. Glazing would require lapping/resurfacing of the hone, as it's basically a dulling or polishing of the abrasive grit's cutting edges; it leaves the surface of the stone looking 'shiny' in the excessively glazed areas, having been literally polished by the carbides in wear-resistant steels. If so, it's generally simpler to just replace the Lansky hones instead of lapping them, as they're relatively inexpensive anyway; and lapping doesn't always get them back to 'new' performance, if it's not done properly. When glazing & dishing happened with mine, I replaced the worn regular hones with a new Lansky diamond kit, at the time.

David