Mitutoyo 368-177 Holtest Inside Micrometer, 3-point, 175 to 200 mm

Description

The Mitutoyo 368-177 Holtest Inside Micrometer is a non-digital, three-point internal micrometer designed for measuring the internal diameters of bores in the 175–200 mm range. Its three-point contact system ensures stable and accurate self-centering measurements.

Key features

• Three-point self-centering anvils: Three anvils are spaced 120° apart to ensure the micrometer automatically centers itself within a bore, providing stable and accurate measurements.
• Titanium-coated measuring pins: The contact points have a titanium nitride (TiN) coating, which gives them excellent durability and resistance to wear and impact.
• Constant-force ratchet stop: A ratchet stop mechanism provides uniform and repeatable measuring force, preventing over-tightening and reducing measurement variation.
• Blind hole measurements: The instrument's design allows for measurements to be taken close to the bottom of blind holes.
• Laser-etched scale: The thimble and sleeve feature a laser-etched scale for improved visibility and easier reading.
• Measurement of deep holes: An optional extension rod can be attached to the micrometer for measuring the internal diameters of deep holes.
• Included wooden case: The instrument is supplied in a fitted wooden case for protection and safe storage.