This 4-step Kingsley North Grit and Polish Essentials Pack with 500 AO and 22,000 Grit Micro Alumina (Aluminum Oxide) Polish contains 1 lb of 60/90 silicon carbide, 1 lb of 120/220 silicon carbide, 0.75 lb of 500 aluminum oxide, and 0.5 lb of 22,000 grit micro alumina (aluminum oxide) polish. Designed for rotary tumblers, this grit and polish kit will tumble approximately 8–10 pounds of stone through a full 4-stage cycle.
Each stage is portioned according to how much material is typically used during tumbling. The finer pre-polish and polish steps require less grit by weight, and the included amounts are sized to match the typical consumption rate for a full batch. This ensures efficient, balanced performance across all four stages.
Includes:
- Stage 1 (Coarse): 1 lb of 60/90 Silicon Carbide
- Stage 2 (Medium): 1 lb of 120/220 Silicon Carbide
- Stage 3 (Pre-Polish): ¾ lb of 500 Aluminum Oxide
- Stage 4 (Polish): ½ lb of 22,000 Grit Micro Alumina (Aluminum Oxide) Polish
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