Mini Magnetic-Base Indicator Holder Arm Type Mini Post and Snug Base Height 1 in Base Length 4 7/8 in Base Size 4 7/8 in L x 1 1/2 in W x 1 in H Base Type Magnetic Base Width 1 1/2 in Compatible Indicator Mounts Dovetail Mount Fine Adjustment Position Fine Adjust Base (FAB) Holding Power 25 lbf Maximum Reach 4.875 in Step Type Flat Working Length of Post/Lower Arm 4.875 in Working Length of Snug/Third Arm 4.875 in Base Thread Size M6 Construction Steel Includes Snug Yes