Spi 10-734-2 Mechanical Hole Micrometer 1.4 to 1.6 Inch

Product Description

The SPI 10-734-2 is a mechanical inside hole micrometer designed for precise bore and hole measurement in machining, manufacturing, and inspection applications. It covers a measurement range of 1.4000 to 1.6000 inches with a graduation of 0.0002 inches and an accuracy of 0.000200 inches. The micrometer features a ratchet stop thimble for consistent, repeatable measuring force and solid carbide measuring anvils for long-term wear resistance. With three contact points, it self-aligns and self-centers inside the bore, reducing operator error and improving measurement consistency.

This hole micrometer is suited for use in tool rooms, machine shops, and quality control environments where accurate bore measurement is required. It is typically used by machinists, metrologists, and precision measurement technicians when inspecting drilled, bored, or reamed holes in metal, plastic, or composite workpieces. The 3.1500-inch gage depth and maximum extension rod length of 6.0000 inches allow measurement access in both shallow and moderately deep bore applications.

Key Features

• Measurement range of 1.4000 to 1.6000 inches for mid-range bore inspection
• Graduation of 0.0002 inches with 0.000200-inch accuracy for high-precision work
• Solid carbide measuring anvils resist wear during repeated use
• Three-point contact design is self-aligning and self-centering in the bore
• Ratchet stop thimble ensures consistent, controlled measuring pressure
• Gage depth of 3.1500 inches with maximum extension rod length of 6.0000 inches

Compatibility

Designed as a direct-use mechanical hole micrometer for bore and internal diameter inspection in machining and quality control environments where a 1.4000 to 1.6000 inch measurement range is required.

Installation Notes

This instrument is installed and used by machinists or quality technicians and requires no power source. Before use, verify calibration against a known setting ring of appropriate diameter. Handle carbide anvils with care to avoid chipping, and store the micrometer in its case when not in use to protect measuring surfaces from damage or contamination.