Thumler's Tumbler Model A-R2 Double Barrel Rotary Tumble Ring Mountings Reduces labor-intensive hand finishing across

Reduces labor-intensive hand finishing across production runs

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

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

Rolls are induction hardened to 64 HRC to a depth of 6mm

Thumler's Tumbler Model A-R2 Double Barrel Rotary Tumble Ring Mountings Reduces labor-intensive hand finishing acrossThe 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