Magnetic-Base Indicator Holder, Arm Type Rigid, Base Height 2 13/64 in, Base Length 2 23/64 in, Base Size 2.362 in L x 1.969 in W x 2 1/5 in H, Base Type Magnetic, Base Width 1 31/32 in, Compatible Indicator Mounts 3/8 in, 4 mm, 8 mm, Holding Power 132...