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

see 2nd picture]: M1=M8 M2=M6 Info on Base: Holding Power (n): 1000 Dimensions (mm): 75 x 50 x 55 Thread: M8 The Fisso Strato M-28 F + SM 3/8" Articulated Indicator Gauge Holder Arm & Large Switch Magnet is a wise choice for a job that needs accurate and easy measurements. The indicator holder and base are included so you won't need to purchase extra attachments. Using your Fisso articulating arm is easy; add a dial indicator, put it into position, turn 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.