Whether you're upgrading an existing recovery system or building a custom setup

this trusted field guide will help make every adventure more successful and rewarding

providing one of the most versatile detecting systems available

Hundreds of minerals are described

secure handhold

Detech 12 x 10" SEF Butterfly Search Coil for Fisher F75, F75 LTD, F70 Snake Guards Whether you're upgrading an existingThis Detech 12 x 10" SEF Butterfly Search Coil is for use with the Fisher F75, F75 LTD and F70 metal detectors. By upgrading to this coil you will achieve the best depth and most accurate pinpointing. Compared to traditional DD coils, the patented SEF coil technology provides you with more stable operation, better ground balancing and the most accurate target identification. Search coil cover included.