Specification Brand : Heywood BulletPoint1 : Supplied with a certificate of accuracy traceable to National Institute of Standards and Technology (NIST) BulletPoint2 : Go (+) gage for measuring the lower limit of a hole BulletPoint3 : Available in a range of sizes from .0040” to 1.0005” BulletPoint4 : Made from tool steel 60/64 Rockwell c scale (Rc) cold stabilized for durability BulletPoint5 : Class ZZ (tolerance of .0002”) for longer wear Color : Silver Tone ExternallyAssignedProductIdentifier1 : 662631031411 ExternallyAssignedProductIdentifier2 : 0662631031411 ExternallyAssignedProductIdentifier3 : 00662631031411 FinishType : heat treatment ItemDiameterTolerance : 0.0002 inches ItemName : Vermont Gage Steel Go Plug Gage, Tolerance Class ZZ, 0.1415" Gage Diameter ItemPackageDimensions_Height : 0.635 centimeters ItemPackageDimensions_Length : 5.08 centimeters ItemPackageDimensions_Width : 0.635 centimeters ItemPackageQuantity : 1 ItemShape : Cylinder ItemTypeKeyword : hardware-pin-gauges Manufacturer : Vermont Gage Material : tool_steel ModelNumber : 111314150 NumberOfItems : 1 PartNumber : 111314150 ProductDescription : 1 piece of 1.25mm 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