Spyderco Sharpener Tri-Angle Cubic Boron Nitride

The Spyderco Superabrasive Cubic Boron
Nitride Tri-Angle Sharpening Stone Rod is a superabrasive that is second in
hardness only to diamond. The set includes two sharpening tri-angle stone rods
in silver color. This cubic boron nitride triangle stone offers greater
abrasion resistance and thermal conductivity than conventional abrasives like
silicon carbide and aluminum oxide. It is a preferred abrasive in most advanced
industrial grinding application. Each cubic boron nitride stone rod measures
7-inch in length with 0.5-inch in breadth. It is easy to combine the advantages
of this fast-cutting abrasive with the convenience of Spydercos Tri-Angle
Sharpmaker which is sold separately.