MJR Tumblers
MJR 400/600 silicon carbide pre-polish
400/600-grade standalone pre-polish.
Price info
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Use and fit
Buy this refill when the medium cut is complete and your sequence specifies 400/600 before polish. The individual pouch is useful when you still have coarse and finishing grades. Clean the barrel and stones before switching from the preceding abrasive.
Specifications
- Brand
- MJR Tumblers
- Listed model
- MJR1p400/600
- Verified detail
- 400/600-grade standalone pre-polish.
Questions before buying
Where does 400/600 go in MJR’s sequence?
It follows the medium stage and comes before the final aluminum oxide in the documented four-stage assortment. Rinse out the medium grit first.
Compare before you buy
Choose a separate 600-grade refill if that single grade is the one in your routine. KoolStone 600-grit silicon carbide pre-polish, 10 lb