Depth Comparison NF 17 x 13 vs NF 15

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Apr 15, 2018
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Hi all,

Can anyone provide any info as to which coil would punch deeper assuming settings on two 4500 or 5000 were identical?

TIA.
 
They would be very close together, if not the same.
The 17*13 easier to pin point and carry in a back pack, I would go the 17*13, I had a 15" open , found some gold with it, including a 0.1 gram bit.
 
Gday Dave,

Ive gotten down to 0.3 with the 15 round, bit of a pain to pin point sometimes but worthwhile. Im just trying to justify buying the 18x13 really.
 

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