Coating: Nickel

Built for prospectors who demand efficiency

eliminating the restrictions of a headphone cable while hunting

and quality control professionals

High-quality stereo audio performance

Nokta Makro IMPACT IM45 15 x 17.5" Black Waterproof DD Search Coil (Impact) Nokta Makro Detectors Coating: NickelNokta Makro IMPACT IM45 15" x 17. 5" Waterproof DD Search Coil Maximize your ground coverage and increase your chances of finding deep targets with the Nokta Makro IM45 15" x 17. 5" Waterproof DD Search Coil for the IMPACT metal detector. Designed for serious detectorists who hunt large areas, this oversized Double D coil delivers exceptional depth and efficiency, allowing you to cover more ground with every sweep while maintaining excellent target