Dual Sided Corundum Whetstone / Sharpening Stone - 1000 and 6000 grit
Japanese sword polishing - Wikipedia
How to Sharpen a Katana
This is the Musashi Whet Stone Sharpening Kit Mounted 1,000 Grit. The polishing stone comes in 1,000 grit. The stone is mounted in a wood casing. Instructions for sharpening the knife has
Amazon.com: Handmade Sword - Masahiro Double Side Whetstone, Fine #3000, Swords Blade Sharpening Stone : Tools & Home Improvement
Katana Maintenance - Sharpening Guide
How to Sharpen a Katana
How to Sharpen a Sword (with Pictures) - wikiHow
Japanese Double Sided Knife Sharpening Stone Whetstone Grindstone #1000/#3000
katana sharpening demonstration - YouTube
Double-Sided Sword and Knife Sharpening Stone – Battling Blades