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STARRETT Standard Reference Bar / Model: RBM 450.
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Category: Standard Reference Bars
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These Standard Reference Bars are invaluable for use in checking table movement of machine tools, accuracy of vernier height gages, surface plate transfer measurement, and for final inspection of precision machine tools and coordinate measuring machines. The alternating gage block jaws and spacer blocks are permanently wrung and fastened together to form 25mm increments.
A special bushing arrangement allows the master stack to conform to thermal conditions prevailing during use, thus providing a true master even under less than perfect laboratory conditions. Mating surfaces are treated during assembly to prevent corrosion.
Non-standard lengths and measuring increments are available on special order.
Specifications
A special bushing arrangement allows the master stack to conform to thermal conditions prevailing during use, thus providing a true master even under less than perfect laboratory conditions. Mating surfaces are treated during assembly to prevent corrosion.
Non-standard lengths and measuring increments are available on special order.
Specifications
- Type: Free Standing
- Size: 450 mm
- Unit Of Measure: Metric System
- Tolerance (Stack) Max: .0025L + .25L in millimeters
- Tolerance (Stack) Min: - .25
- Parallelism: 0.4µm
- Uncertainy of Calibration: .25 + .002L in millimeters expressed in µm.
- Free Standing
- Certificate of Calibration included
- Furnished in a storage case
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