Gold Getter Drop Riffle Sluice With Punch Plate Gems and Rockhounding Books The self-calibrating microprocessor-controlled circuitry requires

The self-calibrating microprocessor-controlled circuitry requires no adjustments of any kind

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Gold Getter Drop Riffle Sluice With Punch Plate Gems and Rockhounding Books The self-calibrating microprocessor-controlled circuitry requiresColumbia River Gold Getter Drop Riffle Sluice with 1 4 Punch Plate Sample gold bearing material in shallow or slow moving water with the compact Columbia River Gold Getter Drop Riffle Sluice. Its integrated 1 4 inch punch plate screens out larger rocks and gravel before smaller material reaches the drop riffle recovery section. Measuring only 5 wide 17. 25 long, the Gold Getter is easy to carry and operate by hand. It is particularly useful where