[#2]

Features/Catch Copy
Superior heat and impact resistance and abrasion resistance.

Specifications ※As this is a made-to-order product, cancellations after order is not accepted
Outer Diameter: 4.7 inches (120 mm)
Inner Diameter: 3.6 inches (91 mm)
Chemistry: Si3N4/90%
Density: 0.1 oz (3.2 g) / cm3
Hardness: HV1300
Quantity: 1