5220-12-145-4259

Master Precision Level

5220121454259 121454259 TL5220-0005-01 912-200 1991-4259 2207-200MM 130302 8/5-200MM 38011102 1722102 38422020 72052-217 24335202 911-200-0-04MMPERM 220EHE200MM WA8-200MM 3602-200 4688-200-1 72164-200MM 108MB200 597-3 11362-200MM 300B200 4034420-0-04MM 3962-200 1525-200MM 335P04/08

A precisely calibrated instrument used as a master reference standard to establish an absolute horizontal plane. The metal base is seasoned and heat treated or otherwise specially treated to insure maximum stability, and is accurately machined and scraped to the true plane on the contact surface. The top plate is of nonconductive heat insulating material. It has a very sensitive vial graduated to indicate a variation of 0.0005 inch (0.0127 mm) per foot (0.3048 m) in a horizontal plane. It may have a cross level vial to assist in setting the true horizontal by showing position laterally. View more Master Precision Level