The 10x5” S.E.F. is designed to work those higher trash sites or just about anywhere a smaller SEF coil is needed. This little guy still offers better all around performance when compared to the other "DD" coils on the market today. Better ground balancing, more stable operation, more accurate pinpointing and increased target identification are all benefits of this coil. The WSS designed coil will give you very precise ground balance and discrimination so it will operate perfectly on even the most contaminated soils. You will get incredible exact pinpointing, extremely stable operation too.