Base, Arm Type Articulating, Base Height 60 mm, Base Length 55 mm, Base Size 55 mm L x 50 mm W x 60 mm H, Base Type Magnetic, Base Width 50 mm, Compatible Indicator Mounts 6 mm, Fine Adjustment Position Fine Adjust Top (FAT); Fine Adjust Bottom (FAB), Holding Power 600 N, Maximum Reach 232 mm, Working Length of Post/Lower Arm 55 mm, Working Length of Snug/Third Arm 177 mm, Working Length of Upper Arm 150 mm, Base Thread Size M8 x 1.25, Includes Snug Yes, Magnet Type On/Off Switch