Gauge Dial IndicatorCaracteristicas: Makes for a great display to show and explain to customers the condition of their crankshaft Simplifies and speeds up the process of checking pinion shaft run out Quickly and accurately measures gear drive backlash on Twin Cam, Evolution, and Milwaukee Eight engines Mounts to cam chest side of engine case using designated mounting holes of tool combined with cam cover bolt holes Includes tool plate, + 0. 001" dial indicator, thumb