Mitutoyo 368-168 Holtest Inside Micrometer, 3-point, 30 to 40 mm

Description

The Mitutoyo 368-168 Holtest Inside Micrometer is a non-digital, three-point bore micrometer designed for measuring the internal diameter of holes with high precision. The three-point contact system ensures self-centering in the bore for stable and repeatable measurements.

Key features

• Three-point contact: Three anvils are evenly spaced 120° apart to ensure the micrometer is self-centered within the bore. This design provides stable and accurate measurements, even for deep holes or in cases where the bore is not perfectly round.
• High accuracy and resolution: The 368-168 model provides a resolution of 0.005mm and an accuracy of ±0.003mm, making it suitable for high-precision measurement applications.
• Constant-force mechanism: A built-in ratchet stop applies a constant and uniform measuring force to the spindle. This reduces the effect of user variation, ensuring consistent and repeatable results. 
• Wear-resistant measuring faces: The measuring faces are made of tungsten carbide with a titanium-nitride (TiN) coating. This makes them highly durable and resistant to wear and impact, helping to maintain accuracy over the instrument's lifespan.
• Easy-to-read scale: The thimble and sleeve have a satin chrome finish, which minimizes glare and makes it easier to read the engraved vernier scale.
• Blind bore measurements: The design of the measuring pins allows measurements to be taken closer to the bottom of blind holes, where access is limited.