Mitutoyo 368-269 Holtest Internal Micrometer 1.6-2 Inch Range

The Mitutoyo 368-269 Holtest is a precision internal micrometer designed for accurate measurement of bore diameters, hole sizes, and internal dimensions in the 1.6 to 2 inch range. This three-point contact bore gauge features a resolution of 0.0002 inches, making it ideal for quality control and precision machining applications.

Key Features:

• Measurement range: 1.6 to 2 inches
• Resolution: 0.0002 inches for precise measurements
• Titanium nitride (TiN) coated contact points for extended wear resistance
• Carbide-tipped contact points provide exceptional durability
• Ratchet stop mechanism ensures consistent measuring force
• Three-point contact design for accurate centering in bores
• Compatible with optional setting rings (sold separately) for zero-point calibration

The Holtest design provides self-centering capability within the bore, eliminating the need for precise alignment. The ratchet stop feature helps maintain uniform contact pressure, ensuring repeatable measurements. The TiN coating significantly extends the service life of the contact points while maintaining measurement accuracy.