EXTRACUT CBN (Cubic Boron Nitride) Grinding Wheels the premium choice for grinding hardened ferrous metals where conventional abrasive wheels wear too quickly. Second only to diamond in hardness, CBN holds its cutting geometry on high-carbon steel, tool steel, and cast iron — delivering cooler grinding, dramatically longer wheel life, and superior surface finish for tool-room and production applications.
Key Features
- CBN Abrasive Layer — Cubic Boron Nitride grains outperform aluminum oxide 50–100× on hardened steels, staying sharp far longer.
- Cool Grinding Action — Lower grinding temperatures reduce the risk of burn, micro-cracks, and metallurgical damage to the workpiece.
- Electroplated / Vitrified Bond — Electroplated for aggressive single-layer cutting; vitrified for form-holding precision grinding.
- High-Speed Rated — Engineered for high-RPM precision grinders and CNC tool and cutter machines.
- Long Service Life — Far fewer dressing cycles and wheel changes compared with conventional AlOx wheels.
- Precision Geometry — Tight tolerance on diameter and profile for consistent, repeatable results.
Applications
Tool and cutter grinding, sharpening HSS and carbide-tipped tools, hardened steel component finishing, camshaft and crankshaft regrinding, bearing race grinding, and production grinding of cast iron and high-carbon steel where wheel life and surface quality are critical.
Specifications
| Specification |
Value |
| Abrasive |
Cubic Boron Nitride (CBN) |
| Bond Type |
Electroplated / Vitrified (select sizes) |
| Diameter |
Ø100mm – Ø200mm (4" – 8") |
| Wheel Width |
10mm – 40mm (varies) |
| Bore |
20mm / 31.75mm / 32mm (custom available) |
| Grit Range |
B46 – B251 (coarse to fine) |
| Max RPM |
3,000 – 6,000 (size-dependent) |
| Surface Speed |
Up to 50 m/s |
| Best For |
Hardened Steel, Tool Steel, Cast Iron, HSS |
| Avoid |
Non-Ferrous / Soft Metals (use diamond) |
