Indicator Arm, Universal, 6" 

6" universal arm for holding test indicators. Arm is constructed of steel and has a central locking mechanism and fine adjustment knob.

The 3/8" indicator stem hole and dovetail grooves holds most dial indicators and test indicators.

The arm has a 8 mm (0.315") x 40 mm (1.57") unthreaded stem for placing the arm in collets.