Spindle Type Spindle Type |
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Manufacturer Model Number Manufacturer Model Number |
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Thimble Type Thimble Type |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Measuring Tool Connection Type Measuring ToolConnection Type |
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Starrett Micrometer Heads
Mount these micrometer heads in jigs, fixtures, machine tools, movable tables, and other equipment that require precise adjustments. They are held in place by the cylindrical mounting hub using your existing brackets or fixtures. Spindle length is the maximum extended distance when the micrometer head is set at zero.
Plain thimbles turn freely without friction or a stopping device and rely on operator feel for accurate measurements.
Ratchet-stop thimbles have a constant-force mechanism to ensure repeatable measurements without relying on operator feel. They also have a speeder knob to reduce the time it takes to move the spindle. Once the spindle contacts the surface of the measured object, it will stop tightening, but the speeder knob will continue turning with a clicking sound.
Nonrotating spindles prevent scratches on delicate work surfaces and eliminate distortion of soft or elastic material.
Locknuts lock the micrometer’s spindle in place.
Spindle | Mounting Hub | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measuring Range | Accuracy | Measuring Increments | Tip Shape | Dia. | Lg. | Face Material | Overall Lg. | Lg. | Dia. | Features | Manufacturer Model Number | Each | |
Plain Thimble—Nonrotating Spindle | |||||||||||||
| 0" to 0.5" | ±0.0001" | 0.001" | Flat | 0.200" | 0.75" | Steel | 3 7/16" | 0.375" | 0.375" | Locknut | 261L | 0000000 | 0000000 |
Plain Thimble—Rotating Spindle | |||||||||||||
| 0" to 0.5" | ±0.00005" | 0.0001" | Flat | 0.203" | 0.75" | Carbide | 2 13/16" | 0.5" | 0.375" | Locknut | T463XL | 0000000 | 000000 |
| 0mm to 13mm | ±0.002 mm | 0.01mm | Flat | 0.138" | 0.625" | Steel | 2" | 0.234" | 0.236" | __ | 460MB | 0000000 | 000000 |
Ratchet-Stop Thimble—Nonrotating Spindle | |||||||||||||
| 0" to 1" | ±0.0001" | 0.001" | Flat | 0.235" | 1.25" | Steel | 5 1/2" | 0.75" | 0.500" | Locknut | 262RL | 0000000 | 000000 |
Ratchet-Stop Thimble—Rotating Spindle | |||||||||||||
| 0" to 1" | ±0.00005" | 0.0001" | Flat | 0.234" | 1.25" | Carbide | 4 63/64" | 0.75" | 0.500" | Locknut | T263XRL | 0000000 | 000000 |
| 0mm to 13mm | ±0.00125 mm | 0.002mm | Flat | 0.203" | 0.75" | Carbide | 3 25/64" | 0.5" | 0.375" | Locknut | V463MXRL | 0000000 | 000000 |
Mitutoyo Micrometer Heads
Use these micrometer heads in jigs, fixtures, machine tools, movable tables, and other equipment that require precise adjustments. They are held in place by the cylindrical mounting hub using your existing brackets or fixtures. All have a plain thimble that turns freely without friction or a stopping device and relies on operator feel for accurate measurements. Spindle length is the maximum extended distance when the micrometer head is set at zero.
Clamp nuts securely hold the micrometer head and provide extra support.
Spindle | Mounting Hub | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measuring Range | Accuracy | Measuring Increments | Tip Shape | Dia. | Lg. | Face Material | Overall Lg. | Lg. | Dia. | Features | Manufacturer Model Number | Each | |
Plain Thimble—Rotating Spindle | |||||||||||||
| 0" to 0.5" | ±0.0001" | 0.001" | Flat | 0.197" | 0.61" | Steel | 2 13/16" | 0.375" | 0.375" | Clamp Nut | 148-502 | 00000000 | 000000 |
Mitutoyo Electronic Micrometer Heads
For easier reading than other micrometer heads, these show measurements on an LCD. Mount them in jigs, fixtures, machine tools, movable tables, and other equipment that require precise adjustments. They are held in place by the cylindrical mounting hub using your existing brackets or fixtures. Spindle length is the maximum extended distance when the micrometer head is set at zero.
Zero-position memory, also known as absolute (ABS) positioning, retains the measuring position when the micrometer is turned off. A zero-set button lets you start measuring at any point. SPC data output allows for connection to a computer or data processor.
Plain thimbles turn freely without friction or a stopping device and rely on operator feel for accurate measurements.
Ratchet-stop thimbles have a constant-force mechanism to ensure repeatable measurements without relying on operator feel. They also have a speeder knob to reduce the time it takes to move the spindle. Once the spindle contacts the surface of the measured object, it will stop tightening, but the speeder knob will continue turning with a clicking sound.
Nonrotating spindles prevent scratches on delicate work surfaces and eliminate distortion of soft or elastic material.
Flat spindle tips are often used in measurement applications and for bearing against round surfaces. Round spindle tips minimize errors from misalignment, so they’re often used as feed devices.
Clamp nuts securely hold the micrometer head and provide extra support.
USB data cable (sold separately) connects the micrometer head directly to your PC.
10-pin data cables (sold separately) connect the micrometer to a Mitutoyo miniprocessor or multiplexer.
Wireless data transmitter and receiver (sold separately) allow you to transmit measurement data from to your PC without being tethered by a cable.
Measuring Range | Accuracy | Measuring Increments | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | Metric | Inch | Metric | Inch | Metric | Spindle Lg. | Overall Lg. | Batteries Included | Measuring Tool Connection Type | Features | Mfr. Model No. | Each | |
Micrometer Heads | |||||||||||||
Ratchet-Stop Thimble—Rotating Spindle with Flat Tip | |||||||||||||
| 0" to 1" | 0 to 25.4 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.06" | 6 5/32" | Yes | Data Out Switch B | Zero-Position Memory (ABS), Zero-Set Button | 350-351-30 | 0000000 | 0000000 |
| 0" to 1" | 0 to 25.4 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.06" | 6 5/32" | Yes | Data Out Switch B | Clamp Nut, Zero-Position Memory (ABS), Zero-Set Button | 350-352-30 | 0000000 | 000000 |
Ratchet-Stop Thimble—Rotating Spindle with Round Tip | |||||||||||||
| 0" to 1" | 0 to 25.4 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.06" | 6 5/32" | Yes | Data Out Switch B | Clamp Nut, Zero-Position Memory (ABS), Zero-Set Button | 350-354-30 | 0000000 | 000000 |
Plain Thimble—Nonrotating Spindle with Flat Tip | |||||||||||||
| 0" to 2" | 0 to 50.8 mm | ±0.00015" | ±0.003 mm | 0.00005" | 0.001 mm | 2" | 6 11/16" | Yes | Data Out Switch C | Rotating Display, Zero-Position Memory (ABS), Zero-Set Button | 164-164 | 00000000 | 000000 |
| Lg. | Measuring Tool Connection Type | Each | ||
| USB Data Cable | 80" | Data Out Switch B | 000000 | 0000000 |
| USB Data Cable | 80" | Data Out Switch C | 000000 | 000000 |
| 10-Pin Data Cable | 40" | Data Out Switch B | 00000000 | 00000 |
| 10-Pin Data Cable | 40" | Data Out Switch C | 0000000 | 00000 |
| 10-Pin Data Cable | 80" | Data Out Switch B | 00000000 | 000000 |
| 10-Pin Data Cable | 80" | Data Out Switch C | 00000000 | 00000 |
| Wireless Transmitter | 1 3/4" | Data Out Switch B | 000000 | 000000 |
| Wireless Transmitter | 1 3/4" | Data Out Switch C | 000000 | 000000 |
| Wireless Receiver | 5 1/2" | __ | 000000 | 000000 |
| Replacement Battery | __ | __ | 00000000 | 0000 |
Mitutoyo Electronic Micrometer Heads with Calibration Certificate
These micrometer heads come with a calibration certificate traceable to NIST that states they've passed a test for accuracy. For easier reading than other micrometer heads, these show measurements on an LCD. Mount them in jigs, fixtures, machine tools, movable tables, and other equipment that require precise adjustments. They are held in place by the cylindrical mounting hub using your existing brackets or fixtures. Spindle length is the maximum extended distance when the micrometer head is set at zero.
Zero-position memory, also known as absolute (ABS) positioning, retains the measuring position when the micrometer is turned off. A zero-set button lets you start measuring at any point. SPC data output allows for connection to a computer or data processor.
Plain thimbles turn freely without friction or a stopping device and rely on operator feel for accurate measurements.
Ratchet-stop thimbles have a constant-force mechanism to ensure repeatable measurements without relying on operator feel. They also have a speeder knob to reduce the time it takes to move the spindle. Once the spindle contacts the surface of the measured object, it will stop tightening, but the speeder knob will continue turning with a clicking sound.
Nonrotating spindles prevent scratches on delicate work surfaces and eliminate distortion of soft or elastic material.
Flat spindle tips are often used in measurement applications and for bearing against round surfaces. Round spindle tips minimize errors from misalignment, so they’re often used as feed devices.
Clamp nuts securely hold the micrometer head and provide extra support.
USB data cable (sold separately) connects the micrometer head directly to your PC.
10-pin data cables (sold separately) connect the micrometer to a Mitutoyo miniprocessor or multiplexer.
Wireless data transmitter and receiver (sold separately) allow you to transmit measurement data from to your PC without being tethered by a cable.
Measuring Range | Accuracy | Measuring Increments | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | Metric | Inch | Metric | Inch | Metric | Spindle Lg. | Overall Lg. | Batteries Included | Measuring Tool Connection Type | Features | Mfr. Model No. | Each | |
Micrometer Heads | |||||||||||||
Ratchet-Stop Thimble—Rotating Spindle with Flat Tip | |||||||||||||
| 0" to 1" | 0 to 25.4 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.06" | 6 5/32" | Yes | Data Out Switch B | Zero-Position Memory (ABS), Zero-Set Button | 350-351-30 | 0000000 | 0000000 |
| 0" to 1" | 0 to 25.4 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.06" | 6 5/32" | Yes | Data Out Switch B | Clamp Nut, Zero-Position Memory (ABS), Zero-Set Button | 350-352-30 | 0000000 | 000000 |
Ratchet-Stop Thimble—Rotating Spindle with Round Tip | |||||||||||||
| 0" to 1" | 0 to 25.4 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.06" | 6 5/32" | Yes | Data Out Switch B | Clamp Nut, Zero-Position Memory (ABS), Zero-Set Button | 350-354-30 | 0000000 | 000000 |
Plain Thimble—Nonrotating Spindle with Flat Tip | |||||||||||||
| 0" to 2" | 0 to 50.8 mm | ±0.00015" | ±0.003 mm | 0.00005" | 0.001 mm | 2" | 6 11/16" | Yes | Data Out Switch C | Rotating Display, Zero-Position Memory (ABS), Zero-Set Button | 164-164 | 00000000 | 00000000 |
| Lg. | Measuring Tool Connection Type | Each | ||
| USB Data Cable | 80" | Data Out Switch B | 000000 | 0000000 |
| USB Data Cable | 80" | Data Out Switch C | 000000 | 000000 |
| 10-Pin Data Cable | 40" | Data Out Switch B | 00000000 | 00000 |
| 10-Pin Data Cable | 40" | Data Out Switch C | 0000000 | 00000 |
| 10-Pin Data Cable | 80" | Data Out Switch B | 00000000 | 000000 |
| 10-Pin Data Cable | 80" | Data Out Switch C | 00000000 | 00000 |
| Wireless Transmitter | 1 3/4" | Data Out Switch B | 000000 | 000000 |
| Wireless Transmitter | 1 3/4" | Data Out Switch C | 000000 | 000000 |
| Wireless Receiver | 5 1/2" | __ | 000000 | 000000 |
| Replacement Battery | __ | __ | 00000000 | 0000 |