Thumler's Tumbler Model A-R2 Double Barrel Rotary Tumble Ring Mountings Basic instructions

Basic instructions

This second-generation model delivers 35% higher maximum power and welds 4× faster than its predecessor

This treatment makes Valtitan files exceptionally effective on hard-to-file surfaces

Reduces labor-intensive hand finishing across production runs

8 mm outside diameter — larger than most sterling silver ear nuts

Thumler's Tumbler Model A-R2 Double Barrel Rotary Tumble Ring Mountings Basic instructionsThe Thumler's Tumbler Model A R2 is a continuous duty double barrel rotary tumbler built for long, unattended runs. Each molded rubber barrel holds up to 3 lb, giving you 6 lb of total processing capacity across two independent batches. Suited for jewelry burnishing with steel shot, cut down work with plastic or ceramic media, or staged lapidary grinding and polishing, the A R2 delivers uniform, repeatable results with quiet operation. Manufactured in