These granite bases are Laboratory Grade, offer a smooth surface, are nonabrasive and extremely hard for an accurate reference plane for work inspection.
- 6" x 6" x 2" granite bases (Grade AA .00005")
- 8" x 12" x 2" granite bases (Grade A .0001")
- 12" x 18" x 4" granite bases (Grade A .0001")
- Column 1.25" diameter for 8" and 12" Height
- Indicator Arm lug or 3/8" stem mount, (with or with-out fine adjustment ).
- Indicator arms have a throat depth of 1.75"
- Height of 6" depending on the type of mount used
- These items are made to order, Please call to Check Availability.
