AtoRock
AtoRock A4 compact rotary tumbler kit
A4 one-barrel starter kit with adjustable speed and timer.

Price info
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Use and fit
This compact kit suits a beginner who wants to work on a single small batch and has limited bench space. The front panel lets you change speed and time as the supplied instructions describe. The four packets cover the initial progression and can later be replaced by individual grades if one runs out first.
Specifications
- Brand
- AtoRock
- Listed model
- AT-RA4RTUS
- Verified detail
- A4 one-barrel starter kit with adjustable speed and timer.
Questions before buying
What should I buy after the starter grit runs out?
Record the grade and compound used at each stage. Replace the grades you use most often with matching refills rather than guessing from the stage number.
Compare before you buy
The A1 kit is a separate option for a larger single-drum batch. AtoRock A1 single-barrel 4 lb tumbler kit