Fowler Universal Magnetic Base

Features: 
• Locking screw and 2 universal ball sockets for setting at any angle or position
• Microfine adjustment screw• Removable extension arm 3-9⁄16"• Use with or without arm• Dovetail form holder with locking control to hold dovetail test indicators• Accepts .250" diameter test indicator stems• Base finished in wrinkled enamel