MM33-J63 280 Grit Roughing, 3.3" to 4.2" Range Honing Stones for High Silicon Aluminum Alloy Blocks


Order No. MM33-J63

These 280 grit roughing stones fit Sunnen AN-style or Goodson GH-style portable hones. Use with MM33-J85, MM33-CO5 and MM33-FO5, these stones are designed to finish high-silicone alumium alloy blocks.