Product Description A set of gauge blocks, also known as gauge slips, made from high quality Tungsten Carbide. Each gauge block is marked with a traceable serial number. The gauge blocks are housed in a tailor made fitted protective case with sizes clearly labelled. Key Features - Tungsten Carbide material for highly increased durability and protection against machining workshop wear - Available in 4 grades: Grade K for Calibration, Grade 0 for Calibration, Grade 1 for Inspection, Grade 2 for workshop - High quality surface finish and high dimensional stability - Working surface hardness greater than 63HRC - Heat treated for high resistance to wear - Conforms to ISO standards for guaranteed accuracy and reliability - Supplied in a tailor made fitted wooden box/case Specification -Metric Tungsten Carbide Gauge Block Set -M122, Grade 0 (Inspection Grade) , Comply with Standard: DIN 861 -Contains 122 Pieces of Small Blocks -Composition (mm) : -0.5, 1.0, 1.0005, 75.0 (4 pcs) -1.001 -