Product Name : High Speed Steel Metric Gauge Blocks
Product No : RICH-High-Speed-Steel-Metric
  • Gauge blocks (also known as gage blocks, Johansson gauges, slip gauges, or Jo blocks) are a system for producing precision lengths. Gauge blocks can adjust, inspection, measure tools or precision parts.
  • Made by the high speed steel, heat treated and demagnetized. Stable accuracy, and wear less.
  • Can use alone or use with other tools. The surface hardness is above 64 degree, so it can hold shape, and be good accuracy.