Product Included Fitted case Shars Tool Master Precisions Level For checking, testing, and setup workHorizontal level is easily adjusted by turning a set screw located on the top surfaceMain level vial is graduated to 10 second accuracy (one division equals .0005" per 10")Additional cross level enables the user to check side declinations2 graduated vials allow for lateral & Horizontal settingsBase is hand scraped for extreme accuracyCast iron body GRADUATION SENSITIVITY PER 10 INCHES (SEC.): 10.00" GRADUATION SENSITIVITY PER 10 (DECIMAL INCH): 0.0005" CALIBRATION INSTRUCTIONS To calibrate this tool, a perfectly level surface is not needed, however a flat surface that does not move is. You will also need a way to bring the level back to the same position when rotating it. Using a square clamped to a surface plate is one way to do it. Electronic Magnetic Z Axis Zero Setter 2“ Height 2" Digital CNC Magnetic Z-Axis Tool Zero Pre Setter Offset IP65 0.0005" Precision Magnetic Z Axis Zero Setter 2" Height x 0.001" 6" LCD Digital Level Protractor Inclinometer IP65 360 Degree Measure Shars 5 Pcs Center Drill & Countersink Bit Tooling Set #1-5, 60° HSS 6" x 1-1/2" x 6" Precision Frame Spirit Levels Buying Options Buying Options Buying Options Add to Cart Add to Cart Add to Cart Customer Reviews — — 4.0 out of 5 stars 56 — 4.7 out of 5 stars 6 4.0 out of 5 stars 1 Price — no data — no data — no data $63.95$63.95 $11.95$11.95 $104.95$104.95 Ordr No. 303-3103 303-3098 303-3104 303-9561 404-1358 303-9507