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Starrett Micrometer Heads
With Plain Thimble
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.
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 |