Mitutoyo 368-273 Holtest Bore Gage with Ratchet Stop 3.5-4.0 Inch Range

The Mitutoyo 368-273 Holtest is a precision three-point internal micrometer designed for accurate bore measurement in the 3.5 to 4.0 inch range. This high-precision bore gage features a ratchet stop mechanism that ensures consistent measuring force and repeatable results, making it ideal for quality control and inspection applications.

Key Features:

• Measurement range: 3.5 to 4.0 inches (88.9 to 101.6 mm)
• Carbide-tipped contact points provide exceptional durability and wear resistance
• TiN-coated contact point for extended service life and reduced friction
• Ratchet stop mechanism ensures consistent measuring pressure
• Three-point contact design for accurate internal diameter measurement
• Compatible with optional setting rings for precise zero-point adjustments

This Holtest bore gage is an essential tool for machinists, inspectors, and quality control professionals who require precise internal measurement capabilities. The combination of carbide tips and TiN coating ensures long-term accuracy even in demanding production environments.