This pack is made to match any of the below Thumler’s Tumbler recommended grit amounts:
| Model | Capacity | Amount Per Barrel |
| Model T, A-R1 Model T-2, A-R2 |
1-qt, barrel, 3 lbs 2-qt, barrels, 6 lbs |
Coarse………………….4 oz Fine………………………4 oz Prepolish………………2 oz Polish……………………2 oz |
| Model A-R6 | 9 lbs | Coarse…………………..8 oz Fine……………………….8 oz Prepolish……………….4 oz Polish…………………….4 oz |
| Model A-R12 Model B |
12 lbs 15 lbs |
Coarse……………………1 lb Fine………………………..1 lb Prepolish………………..1/2 lb Polish……………………..1/2 lb |
The above grit amounts are what we use here at The Rock Shed when we tumble, but some tumbler manufacturers recommended using the same amount of pre-polish as coarse and fine. For that reason, we offer additional grit pack choices.