This listing is for a new Cobra Rock Crusher designed for gold ore sample testing. It is suited to buyers who need a crusher for checking ore samples, small-scale testing, or similar prospecting-related use. Free shipping is included, which may help when comparing total purchase cost. Because the available details are limited, this introduction focuses on the basic information provided without adding unsupported specifications. If you are comparing options, condition and shipping are clear advantages here, while other specifics may need review before purchase. Check the listing for full details, including any information on use, included parts, and other buying considerations. Cobra Rock Crusher For Gold Ore Sample Testing. Color: Black, Condition: New, Made in United States. Listed at 449.00 USD. Pan the crushed material and in minutes find out how much recoverable Gold is in your ore. Cobra Crusher is great for sampling gold bearing rocks in the field. The Cobra Crusher fits most size angle grinders.