Multi-IQ Performance in Variable Ground and Wet Salt Sand

They can be used with any Metal Detector with a 1/4" jack

Complete LCD display included - Restores full visual interface functionality

Iron Discrimination: 44 segments

extending the coil's working life without adding bulk or interfering with detection depth

Thumlers Tumbler 12 oz. Grit Set for Rock Tumbling One Small Pack of Each Type gold-prospecting-equipment Multi-IQ Performance in Variable GroundThumlers Tumbler 12 oz. Grit Set for Rock Tumbling. Contains 4 oz. of coarse grit, 4 oz. fine grit, 2 oz. pre polish, and 2 oz. of polish. For rock tumbling, contains one small pack each of coarse grit (4 oz.), fine grit (4 oz.), pre polish (2 oz.) and polish (2 oz.).