Coiltek has announced a new product 2017 – Coiltek 22 DD Goldstalker coil – that fits the Minelab GP, Minelab GPX, Minelab SD machines (all of them are specifically made for finding gold nuggets). Coiltek has already had a similar coil (identical shape, size, name) in its model lineup, but it’s been a Mono version. The new coil comes as DD type. Continue reading