The Mitutoyo 516-947-10 Rectangular Steel Gauge Block Set has the following specifications:
? Number of blocks: 87 Pieces
? Grade: AS-1
? Material: Steel

The 87 Pieces Rectangular Gauge Block Set is made up of the following blocks:
? 9 Blocks: 1.001-1.009mm (0.001mm step)
? 49 Blocks: 1.01-1.49mm (0.01mm step)
? 19 Blocks: 0.5-9.5mm (0.5mm step)
? 10 Blocks: 10-100mm (10mm step)

FEATURES

? High-carbon, high-chrome steel provides high hardness and wears resistance
? Rectangular base for accurate wringing 
? Nominal length indicated with laser-etched, black characters
? Identification number etched in the block for traceability
? A rectangular gauge block can retain stable orientation both longitudinally and laterally
? A wide range of application measurements can be made, including cutting tool positioning, angle measurement using a sign bar, taper measuring with a roller, and inspection of depth micrometers

Note: Rectangular Gauge Block Sets are supplied with a Mitutoyo certificate of inspection that the block meets the American Society of Mechanical Engineers (ASME) B89.1.9-2002 standard for Flatness, Length, Parallelism, and Surface finish.