Natural Bonded Resinoid Whetstone 75 X 210 X 25 WA4,000# Hard-Tempered (Large! Mm, 725g)

While the WA4,000 grit provides excellent grinding ability, natural igneous rock minerals are added to give the blade self-sharpening properties and viscosity to the grinding water. It can be used quickly without soaking in water. Because it is a resin binder that is baked at around 200 degrees, it will not deteriorate over time or dissolve if submerged in water for a long period of time like mag cement. It is hard enough to be used for craftsmanship tools. Natural feldspar scratches of Mohs hardness 5-6 appear on softer parts, but post-treatment is easy. It is difficult to affect hard parts of water-quenched parts. The color is light green (habutae mochi color) and the large size with a white background makes it easy to see the shavings. Recommended for first-time users of 4,000 grit. Specialized for its grinding ability, clogging resistance, and sticky feel. You can expect a good sharpening feel even on stainless steel and special steel materials. It may feel just right or slightly soft for craftsmanship tools such as woodworking. parent