Which tool to use: Diamond or Cubic boron nitride (CBN)?

Diamond and Cubic boron nitride (CBN) are two common abrasives used in cutting tools. Below is a table that tells you which tool to use for what material.

Diamond Applications

  • Carbide – Tungsten and Titanium
  • Ceramics – Silica, Tiles, Sandstone and Zirconia
  • Composites – FRP, Carbon Fiber, Thermoset
  • Fiberglass
  • Stone – Granite, Limestone, Marble
  • Carbon – Carbon Reinforced Fibers, Graphite
  • Molds, Bushes and Seals

CBN Applications

  • Hi-Speed Steel
  • Alloys and Super Alloys
  • Carbon Steels
  • Cast Iron – Gray, White, Ductile
  • Die Steel
  • Tool Steel
  • Stainless Steel

CBN works well on hard metals while diamond is better for softer non-ferrous materials. To learn more visit Diamond versus CBN – What material does each work best on.

Diamond versus CBN – What material does each work best on


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