MM33-CO5 : Cork Honing Stones
These Polishing stones are sized to fit a cylinder from 2.5" to 3.3" (63.5 to 83.8mm). Ideal for Cast Iron, they will yield a 3 Ra. Used on Hard Sleeves, these stones yield a 2 Ra. Use with your Sunnen AN-style or Goodson CH-style hones. NOTE: You can also use these stones with Sunnen's AN-30 Silicon Compound to hone High-Silicon Aluminum Alloy Blocks.