12' Gammon Reel
Attaches to your plumb bob and provides you with instant rewind of your plumb bob string, up and down adjustment, and an accurate sighting target.
Dave White's SitePro
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Gammon reel construction
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Gammon Reel Dave White's SitePro
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12' Gammon Reel - Black/Orange Surveyors Exchange Co., Inc
NEW 12' GAMMON REEL FOR PLUMB BOB, SURVEYING, RETRACTABLE STRING