Check the listing for details. iGaging Adjustable Router Gauge Set. Condition: New. Listed at 51.98 USD. iGaging Adjustable Router Gauge Set, 184277, Black anodized aluminum construction with white laser engraving, Measures bit height and slot depth up to 2" deep, Measures from edge or center of 1/2" and 1/4" router bits, Imperial 1/16" graduations, Includes: (1) iGaging® Router Gauge 0-1", (1) iGaging® Router Gauge 0-2", (1) Molded case, Use this iGaging® Router Gauge Set to quickly and accurately set up common fractional measurements for your handheld router or router table. This two-piece set can be used to set router bit or blade height, as well measure slot depth up to 2" deep. Both gauges can also be used to set the fence to the edge of a router bit, while the 0-2" gauge can also set the fence to the center of a 1/2" or 1/4" router bit. Unit of Measurement:.