Specification Brand : Tanfel BulletPoint1 : Supplied with a certificate of accuracy traceable to the 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 in .0001” increments up to 1.0000” BulletPoint4 : Made from tool steel 60/64 Rc cold stabilized for durability BulletPoint5 : Class x (tolerance of .00004”) for precision measurement Color : Silver & Black ExternallyAssignedProductIdentifier1 : 0691054752931 ExternallyAssignedProductIdentifier2 : 691054752931 ExternallyAssignedProductIdentifier3 : 00662631163808 IncludedComponents : Class ZZ No-Go Pin Gauge Tol 0.00020 in ItemDisplayWeight : 0.9 pounds ItemName : Tanfel 5/16-18 UNC-2B Taperlock GO NOGO Thread Plug Gage - Gauge. Certified ItemPackageDimensions_Height : 2.794 centimeters ItemPackageDimensions_Length : 9.652 centimeters ItemPackageDimensions_Width : 3.81 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : thread-gauges KeyboardDescription : Flexible Manufacturer : Tanfel Material : tool_steel ModelName : 44 Thread Checker with Toolbox ModelNumber : 141153800 NumberOfBoxes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : 1S05116182B ProductDescription : Tanfel 5/16-18 UNC GO NOGO thread plug gage ASME B1.20.1-2013 NIST traceable Hardened tool steel HRC 58-63. Polished finish Certificate of Accuracy (Included) Handle (Included) Case (Included) Taperlock design Right handed Class 2B Style: Class X Thread type: UNC Measurement System: Inch Condition: NEW ProductSiteLaunchDate : 2019-09-12T12:34:51.850Z Range : 0.5380 inch Size : 5/16-18 Style : Class X SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 39121400