The Mitutoyo 516-930 gauge block set is a 10-piece set of rectangular-shaped gage blocks made of steel, each measuring 2 inches in size. This high-quality set comes in a well-maintained box, making it easy to store and organize the blocks. Ideal for metalworking inspection and measurement, these gage blocks are essential for ensuring accurate results in CNC machining and manufacturing processes. With the trusted brand of Mitutoyo, this set provides reliable and precise measurements for professional use.