... % Silicon Carbide Grits: 36, 46, 60, 80, 100, 120, 180, 240, 320, 500, 800 Dia: 0.3-1.8mm Abrasive filament ... /CTN 6. Grits: 36, 46, 60, 80, 100, 120, 180, 240, 320, 500, 800 7. The raw material: PA610 + 30% Silicon ... gets tough, we really are there for you. Polishing Wire (PA 610/612)