The Lortone 33B Rotary Rock Tumbler is a versatile and handy unit. The double-barrel design lets you use abrasives in one while you polish in the other. You can also use it in single-barrel mode. It's easy to use, even for a beginner, but produces beautiful results like a professional machine. Each molded-rubber barrel has a 3-pound capacity for a total of 6 pounds, perfect for polishing rocks, jewelry, glass or beads. The steel body is strong and stable, and the Lortone quality is backed by a one-year warranty from the manufacturer. This smaller sized tumbler is perfect for those just getting started and for smaller items. Designed for years of trouble-free service. Quiet, sturdy, simple to operate, and gives excellent results. Also perfect for jewelry tumbling. Base dimensions: 6.25"W x 16" L. 3 lb Barrel ID: 4-1/8" Depth, 3-7/8" Dia. Tumbler weight is about 10 pounds.
General rock tumbling instructions here.
Lortone 33B Rotary Rock Tumbler Kit with Grits also available here.