Mitutoyo 81 piece gauge block set, made of high-chromium steel with an ultra-micro-lapped surface finish heat treated and aged to give good wear resistance. Excellent inter-set wringing properties. Mitutoyo gauge blocks meet or exceed all known specifications. The flatness, parallelism and surface finish necessary to achieve the required accuracies are the same as or better than government requirements.

• High-quality alloy steel
• Carefully heat treated and stress relieved for high stability and precision lapped for good wringing properties
• Chamfered edges
• Each gauge is marked with an identification number
• Gauge block hardness is 800 HV (64 HRC) for high wear resistance
• Supplied with case

• Type: 81 piece set
• Grade: Grade 1
• Material: Steel
• Imperial - BS888 Inspection Grade

• 0.1001 to 0.1009in (steps of 0.0001in)
• 0.101 to 0.149in (steps of 0.001in)
• 0.05 to 0.95in (steps of 0.5in)
• 1 to 4in (steps of 1in.)

Mitutoyo gauge block sets are used by engineers and machine shops to measure in microns and to calibrate other measuring tool.