String Action Ruler Gauge Tool for Electric Bass and Acoustic Guitar<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Useful conversions， long lasting etched printing </span></li><li><span class="a-list-item"> Pocket-sized， a lot of info on a tool of this size </span></li><li><span class="a-list-item"> With conversion chart of string action at 12th fret printed on one side </span></li><li><span class="a-list-item"> With scale to measure string height， bridge saddle height， saddle slot depth， pickup polepiece height， fret slot depth and nut height </span></li><li><span class="a-list-item"> Perfect accurate action measurements for string instruments such as guitar， bass， mandolin， banjo， etc </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41ueBECY1ZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41cubNjGt8L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51vURbDyEwL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51lm8yBzOQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51OHOwAssKL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51xh-QeoiQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51O6JU%2BozmL.jpg" noproxy>