The Fisher 11″ DD Black Bi-Axial Metal Detector Search Coil 11COIL-F75 is a highly efficient and durable accessory for Fisher F70, F75, and F75 Ltd metal detectors. With a 11″ diameter, it offers wider coverage in less time and penetrates deeper to uncover larger treasures and coin caches. Its bi-axial design enhances detection accuracy and sensitivity. The search coil is electro-statically shielded and waterproof, ensuring reliable performance in all types of soil. The screw-on connector makes it easy to attach and detach. Upgrade your metal detecting experience with this versatile and high-performing search coil.