Mitutoyo 368-866 Holtest Inside Micrometer, type II, 0.8 to 1"

Description

The Mitutoyo 368-866 Holtest Inside Micrometer is a mechanical, three-point micrometer for taking precise measurements of internal bore diameters. As a Type II Holtest, it features hardened alloy steel anvils for a more affordable tool while maintaining the same accuracy as higher-end models with titanium-coated carbide anvils.

Key features

• Three-point contact method: Uses three self-centering anvils, spaced at 120°, to ensure accurate, repeatable, and aligned measurements of bore diameters.
• Blind bore measurement: The tool's design allows for measuring close to the bottom of blind (or closed-end) holes.
• Ratchet stop: Provides a constant measuring force to ensure uniform and repeatable measurements every time.
• Laser-etched scale: The thimble and sleeve have laser-etched markings for better readability under various lighting conditions.
• Optional accessories: An optional extension rod is available for measuring deep holes, and optional steel setting rings are available for accurate zero-point adjustment.
• Included case: The Holtest is supplied in a fitted plastic case for protection.