Cubic Boron Nitride ( CBN) micron powder is the ideal abrasive for ferrous lapping , polishing and superfinishing applications, CBN micron powder also usually used in resin , metal , electroplated and vitrified bonds , also used for PCBN. We supply amber colored and black colored CBN micron powder for different applications. 1. CBN-MA is amber, this type micron powder is ideal for superfinishing and PCBN ( Polycrystalline Cubic Boron Nitride) manufacturing and CBN honing tools, CBN grinding tools etc.. 2. CBN-MB is black colored, ideal for ferrous lapping and polishing, superfinishing applications, also can be used in honing stick and PCBN ( Polycrystalline Cubic Boron Nitride) manufacturing.