Mitutoyo 611171-531 Steel Gage Block 0.131 in Grade 0

Product Description

The MITUTOYO 611171-531 is a rectangular steel gage block measuring 0.131 inches in overall length, manufactured to Grade 0 accuracy. Gage blocks serve as dimensional reference standards used to calibrate measuring instruments, set up comparators, and verify part dimensions in precision machining and inspection environments. Grade 0 blocks meet ASME standards, placing them in the high-accuracy tier suitable for laboratory and tool room calibration work. Each block ships with a Certificate of Inspection confirming it meets the stated tolerance grade. Weighing 1 pound, the block is a compact, single-piece reference standard built from steel for durability and wear resistance.

This gage block is used in metrology labs, quality control departments, machine shops, and manufacturing facilities where precise dimensional verification is required. It is appropriate for calibrating micrometers, calipers, height gages, and comparator stands. The 0.131-inch nominal size makes it suitable as a wringing component in a gage block set build-up or as a standalone reference for single-dimension checks. Licensed metrologists, quality engineers, and precision machinists are the typical end users for this product.

Key Features

• Grade 0 accuracy per ASME standards, suitable for laboratory and tool room calibration
• Steel construction for durability and resistance to wear during repeated use
• 0.131-inch nominal size for precise single-dimension reference or block stack build-up
• Includes Certificate of Inspection confirming conformance to stated accuracy grade
• Single-piece rectangular geometry compatible with standard wringing technique

Compatibility

Designed as a standalone rectangular gage block reference standard compatible with standard wringing sets and comparator accessories used in ASME-compliant dimensional inspection setups.

Installation Notes

Gage blocks should be handled with clean, dry hands or lint-free gloves to prevent corrosion and contamination of the lapped surfaces. Before use, wring surfaces should be cleaned with an approved gage block cleaning solution and a lint-free cloth. Store blocks in the provided case away from temperature extremes to maintain dimensional stability. Calibration intervals should follow the facility quality management program and applicable ASME or ISO metrology standards.