Just zero the indicators on your surface plate, install the spindle square in your milling machine spindle, bring the spindle down to the table and adjust the head until both indicators read the same. It's that easy!
With 3/8" shank, fully assembled and ready to use with indicators pre-mounted in the unit.
No more tramming or split readings, compensating for loose, worn gears or mirrors.
Can be used with a sine bar or protractor to set angles.
Steel with ground contact points.
Includes fitted aluminum case.
Patented design.