Mitutoyo Square Gage Block Steel AS-1 Grade

Mitutoyo Square Gage Blocks in steel, AS-1 grade, are precision length standards. They are used to set and calibrate fixtures and precision measuring instruments in the shop. They are also called square steel gauge blocks or Series 516 individual gage blocks. Each block is a single, individually sold square gage block made to Mitutoyo's quality standards.

Key Features:

• AS-1 accuracy grade: Made for shop-floor use, such as mounting tools and cutters, making gages, calibrating instruments, and inspecting mechanical parts.
• ASME certification: Supplied with a Mitutoyo certificate of inspection showing the block meets the ASME B89.1.9 standard for flatness, length, parallelism, and surface finish.
• High-carbon, high-chrome steel: Heat-treated for high hardness and wear resistance. The heat treatment also reduces dimensional change over time.
• Square profile: The wide square measuring surface wrings accurately. It holds a stable orientation both lengthwise and crosswise.
• Easy to build setups: Combined with accessories such as a plain jaw and block base, a block can serve as a height reference standard. It can also be used to make a dedicated inspection jig for checking instruments.
• Traceable marking: The nominal length is laser-etched on the block, and an identification number is etched for traceability.

Mitutoyo is a long-established maker of precision measuring equipment. These steel AS-1 gage blocks give quality-control, machining, and metrology work a dependable reference for accurate dimensional measurements.