ce577368_ight_For_The_Ground_Conditions__Double_D_Coils
Small Gold - less than 2 grams [Monoloop Coils] More Sensitive to small gold in all coils With the Minelab 4500 we are picking up small sub 1 gram bits with larger mono coils. The Minelab 5000 on FIne Gold with a small Nuggetfinder Sadie 8x6 inch coil is deadly for small gold. [Double D Coils] 
Small coils sensitive to small gold. Larger coils not as sensitive to small gold.
Metal Detector Coils Get Them Right For The Ground Conditions
Double D Coils