Calibrated and utilized previously in the aerospace industry, this is a exceptionally fine and accurate tool. It has the optical micrometer attached seen in the pictures.
The case and tool has signs of normal wear. Otherwise it is in great condition.
The tilting level is a precision instrument designed for optical tooling and alignment applications. It can be used to establish a place in space that is level (horizontal) to within 1 arc second. When the instrument is used with the optical micrometer and optical tooling scale, displacements from the horizontal plane can be determined at distances up to 100' to an accuracy of thousandths of an inch. All types of machinery and equipment, such as bed plates, turbine foundations, and paper machine be plates, can be leveled with ease to accuracies difficult if not impossible to achieve with conventional mechanical methods.
Levels: Circular Vial- Sensitivity 10 minuets per 2mm movement Level Vial- Coincidence-reading type, 2 1/2X Magnification Tripod Plate- 3 1/2-8 U.S. Standard Thread Weight- 11LBS (approximately) Carrying Case with inserts for instrument accessories
SPECIFICATIONS Length 11" inches Optical System Fully Erecting, achromatic Magnification Varies automatically from 20x at near distance to 30x at infinity Focusing Range 4 inches to infinity Resolving Power 4 seconds to arc (per Bureau of Standards test procedure) Field of View 55 minutes at infinity, 5.2mm at near distance Effective Aperture 30mm Optics Fully Coated throughout Reticle All purpose, double-glass, dustproof, cross-pattern with single lines top & right, paired line bottom & left Eyepiece Erecting, achromatic, removable blank provided for auto-collimation conversion unit