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The Brunton Truarc 3 compass is ajustable for declination WITHOUT the need of a screwdriver like tool. Just grab the clear vial with your left hand index under and thumb over to prevent it from mov...
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The Brunton Truarc 3 compass is ajustable for declination WITHOUT the need of a screwdriver like tool. Just grab the clear vial with your left hand index under and thumb over to prevent it from mov...