White’s has made 200 various shaped coils and has come to understand… A classical coil is the right one. The manufacturer even has a robot for these tests. Maybe it is the world’s first robot with a metal detector? Watch the video: White’s square coils.
If round coils are better, why then are Minelab and Deteknix metal detectors equipped with square ones? For external appearance only?
A square coil comes standard with the Minelab Go-Find 20, Minelab Go-Find 40, Minelab Go-Find 60, and Deteknix Quest PRO metal detectors (the latter have an almost square-shaped coil that looks very similar to those shown by White’s).