Manufacturer Manufacturer | Show |
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System of Measurement System of Measurement |
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Manufacturer Model Number Manufacturer Model Number |
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Material Material |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Measuring Increments Measuring Increments |
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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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Starrett Telescoping Bore Gauges
Spring tension forces two telescoping steel contacts to expand inside the bore; turn the screw to lock the contacts. To find the bore diameter, use a micrometer to measure the distance across the contacts.
| Measuring Range | Max. Dp. Measured | Material | Handle Lg. | Manufacturer Model Number | Each | |
| 5/16"-1/2" | 2" | Steel | 2 7/8" | 579A | 000000 | 000000 |
| 1/2"-3/4" | 2" | Steel | 2 7/8" | 579B | 000000 | 00000 |
| 3/4"-1 1/4" | 2" | Steel | 2 7/8" | 579C | 000000 | 00000 |
| 1 1/4"-2 1/8" | 2" | Steel | 2 7/8" | 579D | 000000 | 00000 |
| 2 1/8"-3 1/2" | 2" | Steel | 2 7/8" | 579E | 000000 | 00000 |
| 3 1/2"-6" | 2" | Steel | 4" | 579F | 000000 | 00000 |
Starrett Telescoping Bore Gauge Sets
Spring tension forces two telescoping steel contacts to expand inside the bore; turn the screw to lock the contacts. To find the bore diameter, use a micrometer to measure the distance across the contacts.
| Number of Gauges | Measuring Range | Max. Dp. Measured | Material | Includes | Manufacturer Model Number | Each | |
| 4 | 5/16"-2 1/8" | 2" | Steel | One gauge with 5/16"-1/2" measuring range One gauge with 1/2"-3/4" measuring range One gauge with 3/4"-1 1/4" measuring range One gauge with 1 1/4"-2 1/8" measuring range | S579GZ | 000000 | 0000000 |
| 6 | 5/16"-6" | 2" | Steel | One gauge with 5/16"-1/2" measuring range One gauge with 1/2"-3/4" measuring range One gauge with 3/4"-1 1/4" measuring range One gauge with 1 1/4"-2 1/8" measuring range One gauge with 2 1/8"-3 1/2" measuring range One gauge with 3 1/2"-6" measuring range | S579HZ | 000000 | 000000 |
Starrett Small-Bore Gauges
Insert into small bores, slots, grooves, and recesses and turn the knob on the handle to expand the contacts. To find the bore diameter, use a micrometer to measure the distance across the contacts.
Full-ball gauges are best for deep bores.
Half-ball gauges are best for flat, shallow areas.
| Measuring Range | Max. Dp. Measured | Material | Manufacturer Model Number | Each | |
Full Ball | |||||
|---|---|---|---|---|---|
| 0.125"-0.2" | 2 1/2" | Steel | 829A | 000000 | 000000 |
| 0.2"-0.3" | 2 1/2" | Steel | 829B | 000000 | 00000 |
| 0.3"-0.4" | 2.7" | Steel | 829C | 000000 | 00000 |
| 0.4"-0.5" | 3" | Steel | 829D | 000000 | 00000 |
Half Ball | |||||
| 0.125"-0.2" | 2" | Steel | 831A | 000000 | 00000 |
| 0.2"-0.3" | 3" | Steel | 831B | 000000 | 00000 |
| 0.3"-0.4" | 3" | Steel | 831C | 000000 | 00000 |
| 0.4"-0.5" | 3" | Steel | 831D | 000000 | 00000 |
Starrett Small-Bore Gauge Sets
Insert into small bores, slots, grooves, and recesses and turn the knob on the handle to expand the contacts. To find the bore diameter, use a micrometer to measure the distance across the contacts.
Full-ball gauges are best for deep bores.
Half-ball gauges are best for flat, shallow areas.
| Measuring Range | Material | Number of Gauges | Includes | Manufacturer Model Number | Each | |
Full Ball | ||||||
|---|---|---|---|---|---|---|
| 0.125"-0.5" | Steel | 4 | One full-ball gauge with 0.125"-0.200" measuring range and 2 1/2" max. depth One full-ball gauge with 0.200"-0.300" measuring range and 2 1/2" max. depth One full-ball gauge with 0.300"-0.400" measuring range and 2.7" max. depth One full-ball gauge with 0.400"-0.500" measuring range and 3" max. depth | S829EZ | 000000 | 0000000 |
Half Ball | ||||||
| 0.125"-0.5" | Steel | 4 | One half-ball gauge with 0.125"-0.200" measuring range and 2" max. depth One half-ball gauge with 0.200"-0.300" measuring range and 3" max. depth One half-ball gauge with 0.300"-0.400" measuring range and 3" max. depth One half-ball gauge with 0.400"-0.500" measuring range and 3" max. depth | S831EZ | 000000 | 000000 |
Inside Hole Micrometers
Find the inside diameter of cylinders and ring. These micrometers have a plain thimble, which relies on operator feel for accurate measurements.
124 series have solid steel extensions that attach at one end of the micrometer head.
823 series have lightweight tubular extensions that can attach at either end of the micrometer head.
| Measuring Range | Accuracy | Measuring Increments | Material | Number of Extension Rods | Extension Rod Dia. | Number of Heads | Head Travel | Includes | Manufacturer | Manufacturer Model Number | Each | |
124 Series—Plain Thimble | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2"-8" | ±0.0001" | 0.001" | Steel | 6 | 1/4" | 1 | 1/2" | __ | Starrett | 124AZ | 000000 | 0000000 |
| 2"-12" | ±0.0001" | 0.001" | Steel | 10 | 1/4" | 1 | 1/2" | __ | Starrett | 124BZ | 000000 | 000000 |
| 2"-32" | ±0.0001" | 0.001" | Steel | 10 | 1/4", 11/32" | 2 | 1/2", 1" | __ | Starrett | 124DZ | 000000 | 00000000 |
| 8"-32" | ±0.0001" | 0.001" | Steel | 4 | 11/32" | 1 | 1" | __ | Starrett | 124CZ | 000000 | 000000 |
823 Series—Plain Thimble | ||||||||||||
| 1.5"-8" | ±0.0001" | 0.001" | Steel | 5 | 3/8" | 1 | 1/2" | 5 1/2" Lg. Handle | Starrett | 823AZ | 000000 | 000000 |
| 1.5"-12" | ±0.0001" | 0.001" | Steel | 8 | 3/8" | 1 | 1/2" | 5 1/2" Lg. Handle | Starrett | 823BZ | 000000 | 000000 |
| 1.5"-32" | ±0.0001" | 0.001" | Steel | 10 | 3/8" | 2 | 1/2", 1" | 5 1/2" Lg. Handle | Starrett | 823FZ | 000000 | 000000 |
| 4"-24" | ±0.0001" | 0.001" | Steel | 7 | 3/8" | 1 | 1" | __ | Starrett | 823CZ | 000000 | 000000 |
| 4"-32" | ±0.0001" | 0.001" | Steel | 8 | 3/8" | 1 | 1" | __ | Starrett | 823DZ | 000000 | 000000 |
| 4"-40" | ±0.0001" | 0.001" | Steel | 10 | 3/8" | 1 | 1" | __ | Starrett | 823EZ | 000000 | 000000 |
Collars for Inside Hole Micrometers
| Material | Manufacturer | Manufacturer Model Number | For Manufacturer Model Number | Each | |
| Steel | Starrett | PT01579 | 124AZ, 124BZ | 0000000 | 000000 |
Handles for Inside Hole Micrometers
Screw into your micrometer head to extend its reach for measuring deep holes.
| Handle Lg. | Manufacturer | Manufacturer Model Number | For Manufacturer Model Number | Each | |
| 6 1/2" | Starrett | 124H | 124AZ, 124BZ, 124DZ | 000000 | 000000 |