2 Packs Steel Pin Gage 0.86mm Diameter Class X Tolerance 0.001mm Plug Gage Pins

Made of bearing steel (GCR15) with high permeability the heat treatment hardness of the pin gauge is up to 58 HRC sturdy and durable. 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 Industrial high precision measurement accuracy ± 0.001 (Class X Tolerance ). Smooth surface anti-rust and wear-resistant. Notice: For high-precision measurement and calibration it should be placed at a constant temperature of 20°C for 2 hours.