Starrett 660 Base Indicator Holder With Triple-Jointed Arm
The compact and versatile 660 magnetic base indicator holder has three adjustable pivots controlled by a single knob for fast, easy indicator positioning. Small but powerful magnetic base, with 70 lbs. (320 N) holding force, positive on/off switch. base dimensions: 1-3/16" x 1-9/16" x 1-3/8".