Magnetic Base/Indicator Holder

Magnetic-Base Indicator Holder Arm Type Rigid Base Height 2 1/8 in Base Length 2 1/2 in Base Size 2 1/2 in L x 2 in W x 2 1/8 in H Base Type Magnetic Base Width 2 in Compatible Indicator Mounts 3/8 in Holding Power 85 lbf Maximum Reach 15 in Step Type V Step Working Length of Post/Lower Arm 9.25 in Working Length of Snug/Third Arm 15 in Working Length of Upper Arm 6.5 in Base Thread Size M8 x 9.0 Construction Steel Includes - Includes Snug Yes Magnet Type On/Off Knob