Fisso Strato M-28 F + M 3/8" Articulated Indicator Gauge Holder Arm & Switch Magnet

see 2nd picture]: M1=M8 M2=M6 Info on Base: Holding Power (n): 800 Dimensions (mm): 60 x 50 x 55 Thread: M8 The Fisso Strato M-28 F + M 3/8" Articulated Indicator Gauge Holder Arm & Switch Magnet is a wise pick for a task that requires accurate and easy measurements. The indicator holder and base are included so you don't need to buy extra attachments. Using your Fisso articulating arm is easy; add a dial indicator, put it into position, twist the knob, and you're ready to start measuring. Still have questions? You can contact us, or take a look at the Fisso Resource Center.