RSK Precision Level/Square

Precision Square Level

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Grade AA, A and B are manufactured and inspected under the JIS B 7510 standard.( See P5. for further information on each grade. )
Grade AA has ±0.2 scale all range accuracy in the main bubble.
These three types have less than 3μm accuracy in flatness between base and side. ( 0.02mm/m type )
Squareness between base and both side is 0.015mm/m. ( 0.02mm/m for Grade A )
Grade AA and Grade A have a bubble chamber in which the length of the bubble is manually adjustable.

For a better look click on the image above.

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