Magnetic-Base Indicator Holder Arm Type Articulating Base Height 2 11/64 in Base Length 2 23/64 in Base Size 2 23/64 in L x 1 31/32 in W x 2 11/64 in H Base Type Magnetic Base Width 1 31/32 in Compatible Indicator Mounts 3/8 in Fine Adjustment Position Fine Adjust Top (FAT) Fine Adjust Bottom (FAB) Holding Power 176 lbf Maximum Reach 10.039 in Step Type V Flat Working Length of Post/Lower Arm 3.73 in Working Length of Snug/Third Arm 2.95 in Working Length of Upper Arm 2.796 in