Specification Brand : Vermont Gage BulletPoint1 : Inch go and no-go plug gage set for inspecting pitch diameter and functional threads of internally threaded parts BulletPoint2 : Made from Rockwell c scale (Rc) cold stabilized tool steel 60/62 for durability BulletPoint3 : Supplied with a certificate of accuracy traceable to National Institute of Standards and Technology (NIST) BulletPoint4 : Class X tolerance per ANSI B1.2 for unified inch screw threads BulletPoint5 : Available in a range of sizes and thread fits for different applications ExternallyAssignedProductIdentifier1 : 662631515058 ExternallyAssignedProductIdentifier2 : 0662631515058 ExternallyAssignedProductIdentifier3 : 00662631515058 ItemName : Vermont Gage 371175050 1 1/4"-7 UNC 2A Go And No-Go Set Plug Gage Assembly ItemPackageDimensions_Height : 1.5 inches ItemPackageDimensions_Length : 9.25 inches ItemPackageDimensions_Width : 1.5 inches ItemPackageQuantity : 1 ItemTypeKeyword : thread-gauges Manufacturer : Vermont Gage Material : Tool Steel ModelNumber : 311143540 NumberOfItems : 1 PartNumber : 371175050 ProductSiteLaunchDate : 2010-02-18T00:00:01-00:00 Size : 1 1/4"-7 UNC Style : Class X UnitCount : 1