Description
Condition
Used (Excellent / Complete Set).
This digital 3-point bore micrometer is in excellent used condition. It comes as a complete set, housed in its original fitted wooden case with all manufacturer documentation. Key Inclusion: This set includes the essential 6mm Setting Ring, allowing you to verify accuracy and set the origin point immediately. The instrument functions perfectly, with a clear LCD display and smooth ratchet action. The measuring contact points are clean and show minimal wear, ensuring reliable measurement of small bores.
Product Overview
The Mitutoyo 468-165 (HTD-8R) is a high-precision, three-point internal micrometer designed to measure the delicate 6mm to 8mm range. Unlike 2-point callipers or telescoping gauges which rely heavily on operator “feel,” the 3-point Holtest design is self-centring, automatically aligning the anvils with the true axis of the bore for a stable and repeatable reading.
This Digimatic model features a large, easy-to-read LCD screen with a resolution of 0.001mm. It utilises Mitutoyo’s Titanium-coated contact points, which provide superior wear resistance and impact protection compared to standard carbide. The ratchet stop mechanism ensures a constant measuring force is applied every time, preventing the small, sensitive anvils from distorting the workpiece or the tool itself. The Absolute (ABS) linear encoder ensures that the zero point is retained even if the spindle is moved quickly.+1
Brand Information
Mitutoyo Corporation (est. 1934) is the global benchmark for precision metrology. The Holtest series is the industry standard for internal measurement, particularly in the automotive and aerospace sectors where bore geometry is critical. The 468 Series combines the mechanical robustness of the original Holtest with modern digital convenience, making it a favourite for high-throughput inspection.
Specifications
| Feature | Specification |
| Model | 468-165 (HTD-8R) |
| Measuring Range | 6mm – 8mm |
| Resolution | 0.001mm (1µm) |
| Accuracy | ±2µm |
| Contact Points | Titanium Coated (3-Point) |
| Display | LCD Digimatic (ABS) |
| Data Output | SPC Capable |
| Included | Wooden Case, 6mm Ring, Spanner, Papers |
Keywords
Mitutoyo, 468-165, HTD-8R, digital holtest, 6-8mm bore mic, 3-point micrometer, internal micrometer, blind hole micrometer, titanium coated anvils, precision measurement.
