Adjustable Holder ArmDimensions of 2 arms: lower arm 5"; upper arm 4.5"; total height 14.1 inches. Clamping hole diameter3/8 inch ( 9.52 mm), Flexible, sturdy, precise rotary joint, can adjust any direction and position, high stability, Compatible with all most dials/digital indicators and other market indicators. The fine adjustment long arm is made of steel hardened, professional and durable. Universal rotating shaft with fine-tuning knob for more accurate measurement.
Wide ApplicatiosThis dial indicator gauge and magnetic base set is perfect for 3D Printer, Lathe, Woodworking, Workshop, CNC Machine, Table Saw, etc. It can be used with machine tools, equipment to determine the errors in the geometrical form, to take accurate measurements of deformation, to take determine positional errors of surface, and to check the alignment of lathe centers.