precise knife straight edge 8 a naturally abrasive material of

a naturally abrasive material of high density

Oleic aсid (for experienced users only)

Graphene is generally just added to a lubricant and shaking is required in order to suspend it for use

Boride Stones may have the following minor defects:

precise knife straight edge 8 a naturally abrasive material ofPrecise Knife Straight Edge is a simple tool to test the flatness of the sharpening stone by a light slit. The Straight Edge has a two sided bevel in the shape of a knife. The Straight Edge provides a level of accuracy far greater than that of a conventional metal ruler. The Straight Edge is made of stainless steel of high hardness (at least 61 HRC) and is equipped with a heat insulating holder. Specification Product size: 198 x 28 mm Materials: