Starrett Electronic Outside Micrometers

All micrometers have a friction thimble with a constant-force mechanism, which stops the spindle from tightening once it contacts the surface of the measured object. This ensures repeatable measurements and prevents over-tightening. Once the spindle has stopped tightening, the thimble will continue turning with resistance.
Zero-position memory, also known as absolute (ABS) positioning, retains the measuring position when the micrometer is turned off. A zero-set button allows you to start measuring at any point.
Micrometers | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Measuring Range | Accuracy | Measuring Increments | Replacement Cases | ||||||||||
Inch | Metric | Inch | Metric | Inch | Metric | Throat Dp. | Frame Material | Batteries Included | Manufacturer Model Number | Each | Each | ||
Friction Thimble | |||||||||||||
0"-1" | 0 mm-25 mm | ±0.0001" | ±0.002 mm | 0.00005" | 0.001 mm | 1" | Steel | Yes | 3732.1XFL-1 | 00000000 | 0000000 | 0000000 | 00000 |
1"-2" | 25.4 mm-50.8 mm | ±0.0001" | ±0.003 mm | 0.00005" | 0.001 mm | 3/4" | Cast Iron | Yes | 3732.1XFL-2 | 00000000 | 000000 | 0000000 | 0000 |
Replacement Battery (1/Pkg.) | 0000000 | Pkg. | 00000 |
Starrett Electronic 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 have a friction thimble with a constant-force mechanism, which stops the spindle from tightening once it contacts the surface of the measured object. This ensures repeatable measurements and prevents over-tightening. Once the spindle has stopped tightening, the thimble will continue turning with resistance.
Zero-position memory, also known as absolute (ABS) positioning, retains the measuring position when the micrometer is turned off. A zero-set button allows you to start measuring at any point.
Micrometers | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Measuring Range | Accuracy | Measuring Increments | Replacement Cases | ||||||||||
Inch | Metric | Inch | Metric | Inch | Metric | Throat Dp. | Frame Material | Batteries Included | Manufacturer Model Number | Each | Each | ||
Friction Thimble | |||||||||||||
0"-1" | 0 mm-25 mm | ±0.0001" | ±0.002 mm | 0.00005" | 0.001 mm | 1" | Steel | Yes | 3732.1XFL-1 | 00000000 | 0000000 | 0000000 | 00000 |
1"-2" | 25.4 mm-50.8 mm | ±0.0001" | ±0.003 mm | 0.00005" | 0.001 mm | 3/4" | Cast Iron | Yes | 3732.1XFL-2 | 00000000 | 000000 | 0000000 | 0000 |
Replacement Battery (1/Pkg.) | 0000000 | Pkg. | 00000 |
Coolant-Resistant Starrett Electronic Outside Micrometers

IP67 rated for protection from dust and temporary water submersion. These micrometers 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.
All micrometers have a friction 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. Once the spindle has stopped tightening, the thimble will continue turning with resistance.
Measuring Range | Accuracy | Measuring Increments | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Inch | Metric | Inch | Metric | Inch | Metric | Throat Dp. | Frame Material | Batteries Included | Environmental Rating | Manufacturer Model Number | Each | |
Friction Thimble | ||||||||||||
0"-1" | 0 mm-25.4 mm | ±0.0001" | ±0.002 mm | 0.00005" | 0.001 mm | 1" | Steel | Yes | IP67 | 733.1XFL-1 | 000000000 | 0000000 |
Replacement Battery (1/Pkg.) | 0000000 | Pkg. | 00000 |
Coolant-Resistant Starrett Electronic 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 are IP67 rated for protection from dust and temporary water submersion. Zero-position memory, also known as absolute (ABS) positioning, retains the measuring position when the micrometer is turned off. A zero-set button allows you to start measuring at any point.
Each micrometer has a friction 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. Once the spindle has stopped tightening, the thimble will continue turning with resistance.
Measuring Range | Accuracy | Measuring Increments | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Inch | Metric | Inch | Metric | Inch | Metric | Throat Dp. | Frame Material | Batteries Included | Environmental Rating | Manufacturer Model Number | Each | |
Friction Thimble | ||||||||||||
0"-1" | 0 mm-25.4 mm | ±0.0001" | ±0.002 mm | 0.00005" | 0.001 mm | 1" | Steel | Yes | IP67 | 733.1XFL-1 | 000000000 | 0000000 |
Replacement Battery (1/Pkg.) | 0000000 | Pkg. | 00000 |
Starrett Electronic Precision Measuring Tool Sets

Set includes a caliper, a micrometer, and a case. The micrometer has a friction 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. Once the spindle stops tightening, the thimble will continue turning with resistance.
Zero-position memory, also known as absolute (ABS) positioning, retains the measuring position when the caliper or micrometer is turned off. A zero-set button allows you to start measuring at any point.
Measuring Range | |||||||
---|---|---|---|---|---|---|---|
Inch | Metric | Micrometer Thimble Type | Batteries Included | Includes | Manufacturer Model Number | Each | |
0"-6" | 0 mm-150 mm | Friction | Yes | One Caliper (0"-6"/0 mm-150 mm Measuring Range, 0.0005"/0.01 mm Measuring Increments, ±0.001"/±0.02 mm Accuracy), One Micrometer (0"-1"/0 mm-25 mm Measuring Range, 0.0001"/0.001 mm Measuring Increments, ±0.0001"/±0.002 mm Accuracy) | S766AZ | 00000000 | 0000000 |
Replacement Battery (1/Pkg.) | 0000000 | Pkg. | 00000 |
Starrett Electronic Precision Measuring Tool Sets with Calibration Certificate

This set comes with calibration certificates traceable to NIST that state each tool has passed a test for accuracy. It includes a caliper, a micrometer, and a case. The micrometer has a friction 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. Once the spindle stops tightening, the thimble will continue turning with resistance.
Zero-position memory, also known as absolute (ABS) positioning, retains the measuring position when the caliper or micrometer is turned off. A zero-set button allows you to start measuring at any point.
Measuring Range | |||||||
---|---|---|---|---|---|---|---|
Inch | Metric | Micrometer Thimble Type | Batteries Included | Includes | Manufacturer Model Number | Each | |
0"-6" | 0 mm-150 mm | Friction | Yes | One Caliper (0"-6"/0 mm-150 mm Measuring Range, 0.0005"/0.01 mm Measuring Increments, ±0.001"/±0.02 mm Accuracy), One Micrometer (0"-1"/0 mm-25 mm Measuring Range, 0.0001"/0.001 mm Measuring Increments, ±0.0001"/±0.002 mm Accuracy) | S766AZ | 00000000 | 0000000 |
Replacement Battery (1/Pkg.) | 0000000 | Pkg. | 00000 |
Starrett USB Cables



Use these cables to connect measuring tools with SPC data output directly to a PC. Select the cable with the connection that is compatible with your measuring tool’s SPC output port. Measurement data can be imported into Microsoft Excel or any SPC software.
Calibration Rods with Calibration Certificate

The included certificate of calibration traceable to NIST states that these rods have passed a test for accuracy. They let you check and set micrometers and other measuring tools. All have insulated plastic handles to minimize heat expansion.
For technical drawings and 3-D models, click on a part number.
Lg. | Lg. Tolerance | Dia. | Manufacturer | Manufacturer Model Number | Each | |
1" | 0" to 0.0001" | 1/4" | Starrett | 234A-1 | 0000000 | 000000 |
2" | 0" to 0.0001" | 1/4" | Starrett | 234A-2 | 0000000 | 000000 |
3" | 0" to 0.0001" | 1/4" | Starrett | 234A-3 | 0000000 | 000000 |
4" | 0" to 0.0001" | 1/4" | Starrett | 234A-4 | 0000000 | 000000 |
5" | 0" to 0.0001" | 1/4" | Starrett | 234A-5 | 0000000 | 000000 |
6" | 0" to 0.0001" | 1/4" | Starrett | 234A-6 | 0000000 | 000000 |
7" | 0" to 0.0001" | 3/8" | Starrett | 234A-7 | 0000000 | 000000 |
8" | 0" to 0.0002" | 3/8" | Starrett | 234A-8 | 0000000 | 000000 |
9" | 0" to 0.0002" | 3/8" | Starrett | 234A-9 | 0000000 | 000000 |
10" | 0" to 0.0002" | 3/8" | Starrett | 234A-10 | 0000000 | 000000 |
11" | 0" to 0.0002" | 3/8" | Starrett | 234A-11 | 0000000 | 000000 |
12" | 0" to 0.0002" | 7/16" | Starrett | 234A-12 | 0000000 | 000000 |
13" | 0" to 0.0002" | 7/16" | Starrett | 234A-13 | 0000000 | 000000 |
14" | 0" to 0.0002" | 7/16" | Starrett | 234A-14 | 0000000 | 000000 |
Calibration Rods
Also known as calibration standards, these rods let you check and set micrometers and other measuring tools. For accuracy, they’re precision ground to extremely tight length tolerances. They have insulated plastic handles to minimize heat expansion.
Sets come with rods of different lengths, making them convenient for checking a range of measuring tools.
For technical drawings and 3-D models, click on a part number.

Lg. | Lg. Tolerance | Dia. | Manufacturer | Manufacturer Model Number | Each | |
Inch | ||||||
---|---|---|---|---|---|---|
1" | 0" to 0.0001" | 1/4" | Starrett | 234A-1 | 0000000 | 000000 |
2" | 0" to 0.0001" | 1/4" | Starrett | 234A-2 | 0000000 | 00000 |
3" | 0" to 0.0001" | 1/4" | Starrett | 234A-3 | 0000000 | 00000 |
4" | 0" to 0.0001" | 1/4" | Starrett | 234A-4 | 0000000 | 00000 |
5" | 0" to 0.0001" | 1/4" | Starrett | 234A-5 | 0000000 | 00000 |
6" | 0" to 0.0001" | 1/4" | Starrett | 234A-6 | 0000000 | 00000 |

No. of Pieces | Includes | Manufacturer | Manufacturer Model Number | Each | |
Inch | |||||
---|---|---|---|---|---|
5 | 1" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 2" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 3" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 4" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 5" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. | Starrett | S234E | 000000000 | 0000000 |
11 | 1" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 2" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 3" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 4" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 5" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 6" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 1/4" Dia. 7" Lg. (0" to 0.0001" Tolerance) Calibration Rod with 3/8" Dia. 8" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 3/8" Dia. 9" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 3/8" Dia. 10" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 3/8" Dia. 11" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 3/8" Dia. | Starrett | S234G | 000000000 | 000000 |
12 | 12" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 7/16" Dia. 13" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 7/16" Dia. 14" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 7/16" Dia. 15" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 7/16" Dia. 16" Lg. (0" to 0.0002" Tolerance) Calibration Rod with 7/16" Dia. 17" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. 18" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. 19" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. 20" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. 21" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. 22" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. 23" Lg. (0" to 0.0003" Tolerance) Calibration Rod with 7/16" Dia. | Starrett | S234J | 000000000 | 00000000 |