Capri Tools 20004 Mini Digital Height Gauge Table saws, router tables, and hand routers work great with this gauge A measurement range of 0 to 3.2" (0 to 83mm) allows for a variety of applications with this device The versatile plunger attachment enables bore and slot depth measurement Includes one CR2032 battery to ensure that you can put it to use right away Repeat settings are possible with this gauge's locking rule