Mitutoyo 611160-541 Rectangular Steel Gauge Block 0.120 In Grade AS-1

The Mitutoyo 611160-541 is a 0.120-inch rectangular steel gauge block manufactured to Grade AS-1 tolerances. Gauge blocks of this type are precision reference standards used in dimensional metrology for calibrating measuring instruments, setting comparators, and verifying part dimensions to exacting standards.

Crafted from high-carbon, high-chrome steel, this gauge block delivers exceptional hardness and long-term wear resistance, ensuring dimensional stability over repeated use. The rectangular geometry provides a reliable, flat reference surface ideal for accurate wringing — the process of molecularly adhering two gauge block faces together to build up precise stack measurements.

Key Features:

• Nominal Size: 0.120 inches
• Shape: Rectangular (RECT)
• Material: High-carbon, high-chrome steel for maximum hardness and wear resistance
• Grade: AS-1 (ASME B89.1.9 standard) — suitable for calibration and inspection applications
• Identification number etched directly into the block for full traceability to calibration records
• Rectangular base geometry designed for accurate and reliable wringing
• Manufactured by Mitutoyo, a globally recognized leader in precision measurement

This gauge block meets ASME B89.1.9 Grade AS-1 specifications, making it appropriate for use in calibration labs, quality control departments, and precision machining environments where measurement accuracy is critical.