Answer
Mar 01, 2021 - 10:57 PM
I would say this one Minelab 9" Concentric Search Coil (X-Terra 50 / 505 / 70 / 705) - 7.5kHz https://www.kellycodetectors.com/9-co... Low frequencies between 2-5 kHz are suitable for deep coins and objects. Mid-range frequencies between 5-12 kHz are good for relic hunting and jewelry. Higher frequencies are usually used for hunting for gold.