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. 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 for repeatable measurements without relying on user feel. A speeder knob reduces 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.
Nonrotating spindles prevent scratches on delicate work surfaces and eliminate distortion of soft or elastic material.
Round spindle tips reduce errors from misalignment, so they’re often used as feed devices.
Clamp nuts securely hold the micrometer head and provide extra support. Locknuts lock the 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—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, Locknuts | 148-502 | 00000000 | 000000 |
| 0" to 0.5" | ±0.0001" | 0.001" | Round | 0.197" | 0.61" | Steel | 2 13/16" | 0.375" | 0.375" | Clamp Nut, Locknuts | 148-852 | 00000000 | 00000 |
| 0mm to 13mm | ±0.002 mm | 0.01mm | Flat | 0.197" | 0.61" | Steel | 2 13/16" | 0.375" | 0.375" | Clamp Nut, Locknuts | 148-504 | 00000000 | 00000 |
Plain Thimble—Nonrotating Spindle | |||||||||||||
| 0" to 1" | ±0.00015" | 0.001" | Flat | 0.315" | 1.063" | Carbide | 4 1/4" | 0.394" | 0.500" | __ | 153-207 | 00000000 | 000000 |
| 0" to 2" | ±0.0002" | 0.0002" | Flat | 0.315" | 2.559" | Carbide | 5 5/8" | 0.551" | 0.709" | __ | 197-201 | 00000000 | 000000 |
Ratchet-Stop Thimble—Rotating Spindle | |||||||||||||
| 0" to 1" | ±0.0001" | 0.001" | Flat | 0.250" | 1.063" | Carbide | 4 3/4" | 0.591" | 0.375" | Clamp Nut, Locknuts | 150-214 | 00000000 | 00000 |
Precision-Adjustment Micrometer Heads
For near perfect positioning, the spindle on these micrometer heads moves in smaller increments than the spindle on any other micrometer head we offer. Mount them in equipment requiring extremely precise adjustments, such as positioning tables used in semiconductor manufacturing or in optical component alignment. Their round spindle tip minimizes alignment errors. The thimble turns freely without friction or a stopping device, so they rely on user feel. They are held in place by the cylindrical mounting hub using your existing brackets or fixtures. For a tight hold and extra support, secure the clamp nut against the bracket or fixture on the mounting hub.
Spindle length is the maximum extended distance when the micrometer head is set at zero.
Spindle | Mounting Hub | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measuring Range | Accuracy | Measuring Increments | Travel Distance per Turn | Tip Shape | Dia. | Lg. | Face Material | Overall Lg. | Lg. | Dia. | Features | Manufacturer | Manufacturer Model Number | Each | |
Plain Thimble—Rotating Spindle | |||||||||||||||
| 0 mm to 6.5 mm | ±0.002 mm | 0.002 mm | 0.1 mm | Round | 0.197" | 0.55" | Steel | 2 27/64" | 0.375" | 0.375" | Clamp Nut | Mitutoyo | 148-143-10 | 0000000 | 0000000 |
| 0 mm to 6.5 mm | ±0.002 mm | 0.01 mm | 0.25 mm | Round | 0.250" | 0.35" | Steel | 1 29/32" | 0.375" | 0.375" | Clamp Nut | Mitutoyo | 148-323-10 | 0000000 | 00000 |
| 0 mm to 13 mm | ±0.002 mm | 0.01 mm | 0.25 mm | Round | 0.197" | 0.69" | Steel | 2 13/16" | 0.375" | 0.375" | Clamp Nut | Mitutoyo | 148-133-10 | 0000000 | 00000 |
Leveling Micrometer Heads
Precisely level heavy machines, surface plates, and other devices when accuracy is crucial. These heads raise and lower objects in 0.01 mm increments, which is as thin as a single sheet of paper. Turn the handle to adjust their height, even when under a machine.
Overall | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measuring Range, mm | Measuring Increments, mm | Point Angle  | Spindle Face Material | Capacity, lbs. | Wd. | Ht. | Base Dia. | Handle Lg. | Features | Manufacturer | Manufacturer Model Number | Each | |
Plain Thimble—Rotating Spindle | |||||||||||||
| 60 to 75 | 0.01 | 90° | Steel | 850 | 4 19/32" | 2 3/8" | 2 17/32" | 3 11/32" | Handle | Mitutoyo | 7850 | 0000000 | 0000000 |
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 the micrometer 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 | Manufacturer Equivalent Number | 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 | __ | __ | 303, 357, D357, EPX76, RW22/42, SP303, SP357, SR44, SR44SW, SR44W, V303, V357, V76PX, WS14/D303 | 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 the micrometer 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 | Manufacturer Equivalent Number | 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 | __ | __ | 303, 357, D357, EPX76, RW22/42, SP303, SP357, SR44, SR44SW, SR44W, V303, V357, V76PX, WS14/D303 | 00000000 | 0000 |