Mitutoyo 368-266 Holtest Internal Micrometer 0.8-1 Inch Range

The Mitutoyo 368-266 Holtest is a precision internal micrometer designed for accurate measurement of bore diameters, hole sizes, and internal dimensions in the 0.8 to 1 inch range. This three-point contact internal micrometer features a ratchet stop mechanism for consistent measuring force and repeatable results.

Key Features:

• Measuring range: 0.8 to 1 inch
• Resolution: 0.0002 inch for precise measurements
• Titanium nitride (TiN) coated carbide contact points for superior wear resistance and extended tool life
• Ratchet stop mechanism ensures uniform measuring pressure
• Three-point contact design provides stable, accurate measurements
• Compatible with optional setting rings for zero-point adjustment and calibration

The Holtest series is ideal for quality control, inspection, and precision machining applications where accurate internal measurements are critical. The hardened, TiN-coated carbide tips resist wear even in demanding production environments, while the ratchet stop helps minimize operator influence on measurement results.