Manufacturer Model Number Manufacturer Model Number |
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Measures Measures |
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Anvil Face Material Anvil Face Material |
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Container Type Container Type |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Thimble Type Thimble Type |
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Manufacturer Series Manufacturer Series |
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Batteries Included Batteries Included |
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Battery Chemistry Battery Chemistry |
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Battery Size Battery Size |
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Outside Micrometers for Grooves and Keyways with Calibration Certificate
These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy. The anvil and spindle are shaped for measuring small grooves and keyways. Each micrometer has a ratchet-stop thimble with a speeder knob to reduce the time it takes to open and close the micrometer. A constant-force mechanism stops the micrometer’s spindle from tightening once it contacts the surface of the measured object. This ensures repeatable measurements and prevents over-tightening. When the spindle stops tightening, the thimble stops turning, but the speeder knob will continue turning with a clicking sound.
Micrometers with SPC data output allow for connection to a computer or data processor.
142 models have a mechanical analog counter that displays measurement readings. They do not require batteries.
342 and 422 models have an easy-to read LCD. They have zero-position memory, also known as absolute (ABS) positioning, which retains the measuring position when the micrometer is turned off. A zero-set button allows you to start measuring at any point.
USB data cable (sold separately) connects micrometers with SPC data output directly to your PC.
10-pin data cables (sold separately) connect micrometers with SPC data output to a Mitutoyo miniprocessor or multiplexer.
Wireless data transmitter and receiver (sold separately) allow you to transmit measurement data from micrometers with SPC data output to your PC without being tethered by a cable.
| Measuring Range | Accuracy | Measuring Increments | Throat Dp. | Point Angle | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers | ||||||||
|---|---|---|---|---|---|---|---|---|
Ratchet-Stop Thimble | ||||||||
| 0"-1" | ±0.00015" | 0.001" | 1.496" | 30° | Vernier Scale | 112-225 | 0000000 | 0000000 |
| Measuring Range | Accuracy | Measuring Increments | Throat Dp. | Point Angle | Analog Counter Numeric Increments | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers with Analog Display | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Ratchet-Stop Thimble | |||||||||
| 0"-1" | ±0.00015" | 0.001" | 1.496" | 15° | 0.001" | Vernier Scale | 142-177 | 0000000 | 0000000 |
| 0"-1" | ±0.00015" | 0.001" | 1.496" | 30° | 0.001" | Vernier Scale | 142-225 | 0000000 | 000000 |
Measuring Range | Accuracy | Measuring Increments | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | Metric | Inch | Metric | Inch | Metric | Throat Dp. | Point Angle | Batteries Included | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers with LCD Display | ||||||||||||
Without SPC Data Output—Ratchet-Stop Thimble | ||||||||||||
| 0"-1" | 0 mm-25 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.26" | 15° | Yes | Vernier Scale, Zero-Position Memory (ABS), Zero-Set Button | 342-351-30 | 00000000 | 0000000 |
| 0"-1" | 0 mm-25 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.26" | 30° | Yes | Vernier Scale, Zero-Position Memory (ABS), Zero-Set Button | 342-361-30 | 00000000 | 000000 |
With SPC Data Output—Ratchet-Stop Thimble | ||||||||||||
| 0"-1" | 0 mm-25.4 mm | ±0.00015" | ±0.00381 mm | 0.00005" | 0.001 mm | 1 1/4" | __ | Yes | Zero-Position Memory (ABS), Zero-Set Button | 422-330-30 | 0000000 | 000000 |
Outside Micrometers for Grooves and Keyways
The anvil and spindle are pointed for measuring small grooves and keyways. Each micrometer has a ratchet-stop thimble with a speeder knob to reduce the time it takes to open and close the micrometer. A constant-force mechanism stops the micrometer’s spindle from tightening once it contacts the surface of the measured object. This ensures repeatable measurements and prevents over-tightening. When the spindle stops tightening, the thimble stops turning, but the speeder knob will continue turning with a clicking sound.
142 models have a mechanical analog counter that displays measurement readings. They do not require batteries.
342 models have an easy-to read LCD. They have zero-position memory, also known as absolute (ABS) positioning, which retains the measuring position when the micrometer is turned off. A zero-set button allows you to start measuring at any point.
| Measuring Range | Accuracy | Measuring Increments | Throat Dp. | Point Angle | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers | ||||||||
|---|---|---|---|---|---|---|---|---|
Ratchet-Stop Thimble | ||||||||
| 0"-1" | ±0.00015" | 0.001" | 1.496" | 30° | Vernier Scale | 112-225 | 0000000 | 0000000 |
| Measuring Range | Accuracy | Measuring Increments | Throat Dp. | Point Angle | Analog Counter Numeric Increments | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers with Analog Display | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Ratchet-Stop Thimble | |||||||||
| 0"-1" | ±0.00015" | 0.001" | 1.496" | 15° | 0.001" | Vernier Scale | 142-177 | 0000000 | 0000000 |
| 0"-1" | ±0.00015" | 0.001" | 1.496" | 30° | 0.001" | Vernier Scale | 142-225 | 0000000 | 000000 |
Measuring Range | Accuracy | Measuring Increments | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | Metric | Inch | Metric | Inch | Metric | Throat Dp. | Point Angle | Batteries Included | Features | Manufacturer Model Number | Each | |
Mitutoyo Micrometers with LCD Display | ||||||||||||
Ratchet-Stop Thimble | ||||||||||||
| 0"-1" | 0 mm-25 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.26" | 15° | Yes | Vernier Scale, Zero-Position Memory (ABS), Zero-Set Button | 342-351-30 | 00000000 | 0000000 |
| 0"-1" | 0 mm-25 mm | ±0.0001" | ±0.0025 mm | 0.00005" | 0.001 mm | 1.26" | 30° | Yes | Vernier Scale, Zero-Position Memory (ABS), Zero-Set Button | 342-361-30 | 00000000 | 000000 |
| Replacement Battery for 342 Models | 00000000 | Each | 00000 |
Outside Micrometers for Screw Threads
Measure thread accuracy in screw-cutting operations. The anvil and spindle have a 60° point for fitting into thread grooves. This micrometer has a plain thimble, which relies on operator feel for accurate measurements.
| Measuring Range | Accuracy | Measuring Increments | Throat Dp. | Frame Material | Manufacturer | Manufacturer Model Number | Each | |
Plain Thimble | ||||||||
|---|---|---|---|---|---|---|---|---|
| 0"-7/8" | ±0.0001" | 0.001" | 1 1/8" | Steel | Starrett | 210AP | 0000000 | 0000000 |
Outside Micrometers for Screw Threads with Calibration Certificate
This micrometer comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. Use it to measure thread accuracy in screw-cutting operations. The anvil and spindle have a 60° point for fitting into thread grooves. It has a plain thimble, which relies on operator feel for accurate measurements.
| Measuring Range | Accuracy | Measuring Increments | Throat Dp. | Frame Material | Manufacturer | Manufacturer Model Number | Each | |
Plain Thimble | ||||||||
|---|---|---|---|---|---|---|---|---|
| 0"-7/8" | ±0.0001" | 0.001" | 1 1/8" | Steel | Starrett | 210AP | 0000000 | 0000000 |
Outside Micrometers for End Mills, Taps, and Reamers
A V-shaped anvil is designed to measure the outside diameter of cutting tools with three flutes. This micrometer comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. It has a ratchet-stop thimble with a speeder knob to reduce the time it takes to open and close the micrometer. A constant-force mechanism stops the micrometer’s spindle from tightening once it contacts the surface of the measured object. This ensures repeatable measurements and prevents over-tightening. When the spindle stops tightening, the thimble stops turning, but the speeder knob will continue turning with a clicking sound.
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.
USB data cable (sold separately) connects the micrometer 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 | Throat Dp. | Frame Material | Batteries Included | Manufacturer | Manufacturer Model Number | Each | |
Ratchet-Stop Thimble | ||||||||||||
| 0.05"-0.6" | 1.27 mm-15.24 mm | ±0.0002" | ±0.00508 mm | 0.00005" | 0.001 mm | 0.98" | Cast Iron | Yes | Mitutoyo | 314-351-30 | 0000000 | 0000000 |