Size: 0.011”-0.060" at interval of 0.001”, tolerance: -0.0002", length: 2" ± 0.01"
Made from bearing steel, heat treated, HRC 60-62, no sharp corners
Each is laser engraved clearly with size
50pcs are well organized in a durable storage case
Used to calibrate gauge, and measure core vibration, hole core deviation, dovetail groove, groove width, keyway width, tooth groove vibration, parallelism of V-groove, radius, aperture, hole spacing, hole position for parallelism, and position milling cutter