Mitutoyo, 368-879, Mechanical Holtest Three-Point Internal Micrometer, 9-10″
Features:
- Design allows for measurements closer to the bottom of blind bore holes
- Scale on thimble and sleeve is laser etched for easier reading in all conditions
The Mitutoyo mechanical Holtest internal micrometer features three alloy steel anvils evenly spaced at 120° for true alignment of the axis bore for accurate, easily repeatable measurements. A hardened steel spindle with a carbide ball and cone with a carbide pin ensure accuracy and durability when extending and retracting the anvils. The holtest’s ratchet stop mechanism provides a constant measuring force on the hardened-steel spindle to ensure accurate, even measurements.
Technical Details
| Technology: | Mechanical |
| Ratchet/Thimble: | Ratchet Stop |
| Units: | Inch |
| Range: | 9-10″ |
| Graduation: | 0.0002″ |
| Accuracy: | ±0.00030″ |





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