Honmamon Original Kyoto Higashiyama HSS #10000 is a Japanese ultra-fine finishing whetstone made with green carborundum, made in Japan.

• Grit #10000 super-finishing stone; size 210 x 75 x 25mm, approx. 760g
• Green carborundum (GC) construction designed to mimic natural whetstone performance
• Suited to high-hardness blades including powder high-speed steel and blue paper super steel
• Ideal for knives, chisels, and planes
• Brand new, genuine Honmamon whetstone, shipped from Japan