Thumler's Tumbler Model B 140 Heavy Duty 15lb Rock Rotary Tumbler Tumblers & Accessories This can be used for

This can be used for marking or engrave on metal

They are sometimes called display pins or jewelry pins

It measures approximately 12" x 18 1/4" (30 x 46 cm)

and powerful motor

Thumler's Tumbler Model B 140 Heavy Duty 15lb Rock Rotary Tumbler Tumblers & Accessories This can be used forThumler's Tumbler Model B 140: High Quality Rotary Rock Tumbler with 15lb Capacity The Thumler's Tumbler Model B 140 is a high quality rotary rock tumbler that is perfect for rock enthusiasts of all levels. With its sturdy construction, powerful motor, and hexagon shaped barrel, this tumbler can handle a variety of materials with ease. One of the main benefits of this tumbler is its large capacity. The barrel can hold up to 15 pounds of material, and