Mini-Sonic Tumbler Ring Mandrels Ideal for gravers

Ideal for gravers

glass displays and other surfaces against scratching

Attach a length of chain to each end to make a necklace

A hook on the back of the bust secures excess chain

172 ounces (373

Mini-Sonic Tumbler Ring Mandrels Ideal for graversThe MT 4 Mini Sonic tumbler operates with no moving partsno shafts, belts, pulleys, spinning weight or even a motorno parts to maintain, wear out or replace. This tumbler converts electric current into vibrations (more than 3,500 vibrations minute) that power the rotation of the load. The intensity of the vibration is adjustable using solid state electronic controls. While parts tumble, they are alternately separated and pushed together; this cycling