Size - 2 pieces of 0.25mm pin gage, each gauge size is clearly marked. Tolerance: ± 0.001, length: 50mm/2-inch, surface roughness: <0.2um.
Material - Made of bearing steel (GCR15) with high permeability, the heat treatment hardness of the pin gauge is up to 58 HRC, sturdy and durable.
Feature - Industrial high precision measurement accuracy ± 0.001 (Class X Tolerance ). Smooth surface, anti-rust, and wear-resistant.
Application - Used for measuring holes, hole spacing, and slot width, especially suitable for electronic inspection of the precision micro holes and measuring circuit boards in the electrical hardware industry.
Note - For high-precision measurement and calibration, it should be placed at a constant temperature of 20°C for 2 hours.
