Manufacturer Manufacturer |
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Manufacturer Series Manufacturer Series | Show |
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Manufacturer Series Manufacturer Series | Hide |
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System of Measurement System of Measurement |
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Maximum Measurement Maximum Measurement |
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Anvil Tip Shape Anvil Tip Shape |
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Thimble Type Thimble Type |
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Measuring Increments Measuring Increments |
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Spindle Face Material Spindle Face Material |
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Measures Measures |
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Spindle Diameter Spindle Diameter |
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Minimum Measurement Minimum Measurement |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Frame Material Frame Material |
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Throat Depth Throat Depth |
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Anvil Face Material Anvil Face Material |
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Container Type Container Type |
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Anvil Face Diameter Anvil Face Diameter |
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Spindle Tip Shape Spindle Tip Shape |
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Starrett Outside Micrometers
Each micrometer thimble has a constant-force mechanism, so that once the spindle contacts the surface of the measured object, it will stop tightening. This ensures repeatable measurements and prevents over-tightening.
Friction thimbles continue to turn with resistance when the micrometer’s spindle stops tightening.
Ratchet-stop thimbles have a speeder knob to reduce the time it takes to open and close the micrometer. When the spindle stops tightening, the thimble stops turning, but the speeder knob will continue turning with a clicking sound.
230 and 232 series have decimal equivalents stamped on the frame.
Starrett Outside Micrometers with Calibration Certificate
These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy. All micrometers have a thimble with a constant-force mechanism, so that once the spindle contacts the surface of the measured object, it will stop tightening. This ensures repeatable measurements and prevents over-tightening.
Friction thimbles continue to turn with resistance when the micrometer’s spindle stops tightening.
Ratchet-stop thimbles have a speeder knob to reduce the time it takes to open and close the micrometer. When the spindle stops tightening, the thimble stops turning, but the speeder knob will continue turning with a clicking sound.
230 and 232 series have decimal equivalents stamped on the frame.