GB1-450 SK

【Features】
In order to guarantee accuracy, an inspection table is included with the numerical values ​​at the time of inspection.
Easy to clean as it contains a rust prevention sheet.
It is equivalent to class 1.

【Use】
As a reference gauge for accuracy inspection and comparative measurements of calipers, micrometers, dial gauges, etc.

【Specification】
Cross-sectional dimensions (mm): 30{0-(-0.3)}x9{(-0.05)-(-0.2)}
Thermal expansion coefficient: 11.5x10-6 power/K
Dimensional tolerance (μm): ±0.20 (Difference width 0.16)

【Specification2】
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【Material/Finish】
Body: High carbon high chromium steel

【Set contents/accessories】
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【caution】
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