Keeping our guitars in optimum working order is something we should all aim to do.  Often these things shouldn't be a guessing game and taking accurate measurements is of utmost importance, that's why it's always useful to have something like a string gauge close by.

This is the D'Addario SHG-01 String Height Gauge.  This is an all-in-one tool to help you set up your guitar with the highest possible level of precision. Made of stainless steel, this durable tool helps you easily measure the height of your strings and pickups, neck relief, and other critical measurements.

With access to these measurements all in one place, getting your guitar into its best playing form has never been easier.