Type A: >60HRC
This type is specially developed for granite gang saw cutting with high cutting performance and abrasive-resistance.

Type B: HRC 40-50
Angular when new, rounds off gradually in use. Suitable for removing the oxygenated surface and cleaning of foundr; Y product.

Type C: HRC 53-60
Angularness remain sharp in use. Having a fast, effective etching action. Ideal for deep descaling and etching action. For use mainly with compressed air blasting, machine.