Mitutoyo 368-765 Holtest Three Point Internal Micrometer, 16 to 20 mm

Description

The Mitutoyo 368-765 Holtest Three-Point Internal Micrometer (Type II) is a precision measuring instrument with a 16–20 mm range for accurately measuring the internal diameter of bores. This non-digital, vernier-style micrometer features a three-point contact system with self-centering anvils for stable, repeatable measurements.

Key features

• Self-centering measurement: The three equally spaced (120°) anvils ensure the instrument is automatically centered in the bore, allowing for stable and accurate measurements.
• Durable construction: The anvils are made of high-grade alloy steel, and the spindle features a carbide ball and cone for durability. The Type II model features hardened tool-steel anvils, which makes it more economical than models with titanium-coated pins.
• Repeatable measurements: The ratchet stop mechanism controls the measuring force, ensuring consistent and repeatable results.
• Blind hole measurements: This Holtest can be used to measure dimensions in bores close to the bottom of blind holes.
• Deep hole measurements: An optional extension rod can be attached to measure deep holes.