Fisso Classic 4400-45 F + MM 3/8" Articulated Indicator Holder Arm & Switch Magnet

see 2nd picture]: M1=M8 (This may be M10 x 1.25 OR an adapter will be given to connect to base. If that matters to you let us know. This is the end that connects to the base). M2=M8 Info on Base: Holding Power (n): 1500 Dimensions (mm): 120 x 60 x 55 Thread: M10 x 1.25 If you need a large indicator holder arm with a far reach you're going to want the Fisso Classic 4400-45 F + MM 3/8" Articulated Indicator Holder Arm & Switch Magnet. It can measure work-pieces on larger industrial machines because of the longer-than-normal reach. This item includes the adjustment (indicator holder), and base so you don't need other accessories to start using it. Using your Fisso articulating arm is extremely easy. Attach your favorite dial indicator to the adjustment, position it, 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.