Product Description A set of gauge blocks, also known as gauge slips, made from high quality stress relieved and hardened alloy steel. 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 - High quality hardened steel for durable life - 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 Steel Gauge Block Set -M103, Grade 2 (Workshop Grade) , Comply with Standard: DIN 861 -Contains 103 Pieces of Small Blocks -Composition (mm) : -1.0005 (1 pc) -1.01 - 1.49 (0.01 increments, 49 pcs) -0.5 - 24.5 (0.5 increments, 49 pcs)