SPI - Spindle Square - Fully Assembled

A simple solution to squaring your machine. Just zero indicators on flat surface (like a granite plate), install in milling machine spindle, bring the spindle down to the table and adjust the head until both indicators read the same.

• 3/8" shank.
• Fully assembled with indicators mounted
• and ready for use.
• No more tramming or split reading,
• compensating for loose, worn gears or mirrors.
• Can also be used with a sine bar or
• protractor to set angle.
• Constructed of steel with precision ground
• contact points for durability and accuracy
• Mini inch model designed for mini-milling or table-top
• machines and comes in leather pouch.
• All other models furn ished in fitted case.