SEHT120404 CBN Insert for Cast Iron, 1/2″ Square

Price range: $15.00 through $139.00

SEHT120404 CBN insert for hardened steel, cast iron, and ferrous materials. Cubic boron nitride tip cuts up to 70 HRC and lasts far longer than carbide. 1/2″ square, 0.4 mm corner radius. Fits standard SEHT holders, face mills, and fly cutters.

Cubic Boron Nitride Turning, Milling & Fly-Cutting Insert, Cuts up to 70 HRC, Fits SEHT Holders

Machine what carbide can’t. This SEHT120404 insert uses a CBN (cubic boron nitride) tip. CBN ranks second in hardness only to diamond. It cuts hardened steel up to 70 HRC, cast iron, and superalloys.

  • Cuts Cast Iron to 70 HRC: CBN machines hard, abrasive materials that regular carbide can’t touch.
  • Holds its edge red-hot: It stays sharp at extreme temperatures. Run higher speeds and faster cycles without burning up the tool.
  • Can replace grinding: The fine surface finish and size control let CBN replace many grinding steps. Two operations become one.
  • Far longer tool life: It wears far slower than carbide in hard material. You change tools less and lower your cost-per-part.
  • For ferrous only: Use it on hardened steel, cast iron, and superalloys. For aluminum and non-ferrous metals, use the PCD version.
  • Specs & fit: 1/2″ square (12 mm), 0.19″ thick, 0.2″ bore, 0.4 mm corner radius (04). Fits standard SEHT holders, face mills, and fly cutters.
  • Sold as 1pc or 10pc value packs.