Thumler's Tumbler Model A-R1 Small Rotary Tumbler Kit 110V

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.

Key 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/ceramic media
• Also suitable for rock tumbling with silicon carbide and cerium oxide
• Rust-resistant stainless shot simplifies care versus plain carbon steel shot
• Made in the USA

Specifications

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 & Applications

• 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 / Care

• 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/ceramic media or rock tumbling abrasives.

California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.