Specification Brand : HARFINGTON BulletPoint1 : Size - 1 piece of 1.45mm pin gage, each gauge size is clearly marked. Tolerance: ± 0.001, length: 50mm/2-inch, surface roughness: <0.2um. BulletPoint2 : 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. BulletPoint3 : Feature - Industrial high precision measurement accuracy ± 0.001 (Class X Tolerance ). Smooth surface, anti-rust, and wear-resistant. BulletPoint4 : 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. BulletPoint5 : Note - For high-precision measurement and calibration, it should be placed at a constant temperature of 20°C for 2 hours. Color : Silver Tone FinishType : heat treatment ItemName : HARFINGTON 0.0571" Pin Gage 1.45mm Diameter Metric Tolerance 0.001mm Class X Plug Gage Pin, Bearing Steel Go No-Go Plug Gage ItemPackageDimensions_Height : 27.6 centimeters ItemPackageDimensions_Length : 1.2 centimeters ItemPackageDimensions_Width : 21.4 centimeters ItemShape : rod shape ItemTypeKeyword : hardware-pin-gauges Manufacturer : HARFINGTON Material : bearing steel ModelNumber : hta221027hh0339 PartNumber : hta221027hh0339 ProductDescription : 1 piece of 1.45mm pin gage, each gauge size is clearly marked. Tolerance: ± 0.001, length: 50mm/2-inch, surface roughness: <0.2um. 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. Available in a range of sizes from 0.10 mm to 2.00 mm