12 Inch Master Precision Level with Metal Box,instruction manual, 0.0002"/10" Accuracy Strip Level for Checking the Straightness Parallelism The Surface of Machine Tools (12 Inch)

12 Inch Professional Precision Level with Box, 0.0002/10 Inch Accuracy Strip Level for Checking the Work of Machinists Toolmakers Specification: Size: 12 inch Accuracy: 0.0002"/10" Style: Standard Color: Black Material: Alloy Steel Features: Carbon steel body with a ground finished base for high accuracy. Adjustable main vial with an accuracy of 0.0002"/10" and high transparency. The level is used for checking the straightness parallelism of the surface of machine tools other equipment the correctness of horizontal vertical installing positions. Note: When measuring, make the working face of the level close to the measured surface, and read after the bubble is completely stationary Packaging: filled with high-quality foam, using high-quality aluminum alloy boxes instead of wooden boxes for easy storage, avoiding product collision damage and wooden box rupture during transportation Adjustment instructions: Use the built-in wrench to open the side dust cover, Wrench to turn the upper or lower screw. You can adjust the air bubbles in the central vial to gradually move left or right. Carefully observe the screw rotation direction and air bubble movement. After the bubble is stable, keep it in the middle and the adjustment is completed Install the dust cover, the adjustment is complete Package Contents: 1 x 12 inch 0.0002/10 Inch Accuracy Strip Level 1 x Special adjustment wrench for spirit level 1 x Maintenance and Adjustment Instruction Manual 1 x High-strength exquisite aluminum alloy packaging box