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Guitar String Action Ruler Gauge Tool Stainless Steel Height Gauge Set Up Tool String Height Measurement Tool Durable
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Amazon.com: String Action Gauge Ruler, Guitar Height Gauge Set Up Tool for Electric Bass and Acoustic Guitar : Musical Instruments
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String Action Ruler/Action Gauge for Measuring Several Guitar/Strings Settings Setup and Playability, 3.5 x 2 x 0. - Walmart.com
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