Spi CMS141007012 Vernier Caliper 0-40 in Stainless Nist

Product Description

The SPI CMS141007012 is a large-range vernier caliper built for precise linear measurement from 0 to 40 inches. Constructed from stainless steel throughout — including the jaws — it delivers an accuracy of 0.003 inches and a graduation of 0.001 inches, making it suitable for demanding metrology and inspection tasks. The 5.9-inch jaw depth accommodates large-diameter workpieces, and a fine adjustment mechanism allows for controlled, repeatable positioning. NIST traceability certification is included, meeting documentation requirements for calibrated measurement environments. A thumb lock and double set screws secure the sliding jaw during readings.

This caliper is intended for use in industrial, manufacturing, and quality-control environments where large-scale dimensional inspection is required. Typical applications include measuring large-bore components, structural parts, and fabricated assemblies. It is suited for machinists, quality technicians, and inspection professionals who require a calibrated, high-accuracy instrument across a wide measurement range. The chrome finish resists corrosion in shop environments, and the included case protects the instrument during storage and transport.

Key Features

• 0 to 40-inch measurement range with 0.001-inch graduation for fine resolution
• Accuracy of 0.003 inches across the full measurement range
• Stainless steel beam and jaw construction for durability and corrosion resistance
• Fine adjustment mechanism for precise, controlled jaw positioning
• Double set screws and thumb lock secure the jaw during measurement
• NIST traceability certification included for calibrated inspection use
• Includes protective carrying case

Compatibility

Designed as a general-purpose large-range vernier caliper for industrial metrology and dimensional inspection applications requiring a 0 to 40-inch measuring span.

Installation Notes

Handled and deployed by machinists, metrologists, and quality inspection personnel — no installation in the mechanical sense is required. Store in the included case when not in use to protect the precision surfaces and beam from damage. Before use, verify the jaws close to zero and confirm the NIST calibration certificate is current per your facility quality procedures. Avoid dropping or applying lateral force to the beam, as this can affect accuracy and graduation alignment.