The Thumler's Tumbler Model A-R1 Kit pairs the proven A-R1 small rotary tumbler (110V) with 3 lb of rust-resistant stainless steel mixed shot and a 2 oz bottle of Otto MF 610 concentrated burnishing compound. Built to run continuously, the A-R1 slowly and consistently burnishes jewelry, small parts, and castings for a bright, work-hardened finish. Made in the USA by Tru-Square Metal Products.
Features
- Complete kit: tumbler, 3 lb stainless steel shot, and 2 oz MF 610 compound
- Continuous-duty rotary action for uniform results
- Molded rubber 3 lb barrel reduces noise and cushions parts
- Versatile: burnish with steel shot or cut down with plastic or ceramic media
- Also suitable for rock tumbling with silicon carbide and cerium oxide
- Rust-resistant stainless shot simplifies care compared to plain carbon steel shot
- Made in the USA
Specifications
| Model |
Thumler's Tumbler A-R1 |
| Voltage |
110V |
| Barrel Capacity |
3 lb (1.36 kg) total load including media and workpieces |
| Dimensions |
8-1/2 in × 7-1/2 in × 6 in (Depth 216 mm × Height 190 mm × Width 152 mm) |
| Duty Cycle |
Designed for continuous operation |
| Manufacturer |
Tru-Square Metal Products (Thumler's Tumbler) |
| Country of Origin |
USA |
What's Included
- 147.781 – Thumler's Tumbler Model A-R1 Small Rotary Tumbler (110V)
- 147.795 – Stainless Steel Mixed Shot (3 lb total)
- 147.772 – Otto MF 610 Concentrated Burnishing Compound (2 oz)
Compatibility
-
Burnishing: Use stainless steel shot with MF 610 compound to brighten and work-harden castings and fabricated parts.
-
Cut-down: Use appropriate plastic or ceramic media with detergent compounds for more aggressive surface refinement.
-
Lapidary: Rock tumbling with silicon carbide (grinding) and cerium oxide (polishing).
Notes
- Do not exceed barrel capacity; total load includes media, parts, and liquid.
- Rinse stainless shot after use and allow to drain; stainless is rust-resistant and easier to maintain than plain steel shot.
- Follow incremental grit stages and thorough cleanouts when cutting with plastic or ceramic media or rock tumbling abrasives.
