description

36 Grit Silicon Carbide. Comes with FREE Polishing Instructions. Black silicon carbide extra coarse grit used during the first stage of tumbling. This grade can be used prior to a coarse grade for very hard stones. This grade can be used to make beach sea glass for a "rougher" look.

*Reliable US company producing highest quality products for over 20 years. We offer the most versatile tumblers on the market today.