Conversion Kit for Thumler Model B Rotary Tumbler

You have a lot of money wrapped up in your Model B single-drum tumbler, now make it more versatile with this kit which converts it to a double 3-pound drum operation.  Conversion kit automatically adjusts drum speed for perfect operation.  You can then run 3 pound, 6 pound or 15 pound batches.  Comes with the two 3-pound drums and both quick-change shafts.  Changeover time = 30 seconds!