Starrett 660 Base Indicator Holder With Triple-Jointed Arm

• Horizontal and vertical mounting positions

• Will hold any indicator with a 3/8" stem or standard dovetail mount

• Articulating arm with powerful central locking knob, provides full 360 degree horizontal positioning and over 180 degree vertical positioning

• Maximum horizontal reach: 4.750"; maximum vertical reach: 7.500"

• Very sensitive fine adjustment thumb screw