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 ExternallyAssignedProductIdentifier1 : 662631032449 ExternallyAssignedProductIdentifier2 : 0662631032449 ExternallyAssignedProductIdentifier3 : 00662631032449 ItemDiameterTolerance : 0.0002 inches ItemName : Vermont Gage 111324450 Steel Go Plug Gage, Tolerance Class ZZ, 0.2445" Gage Diameter ItemPackageDimensions_Height : 0.762 centimeters ItemPackageDimensions_Length : 5.08 centimeters ItemPackageDimensions_Width : 0.762 centimeters ItemPackageQuantity : 1 ItemShape : Cylinder ItemTypeKeyword : hardware-pin-gauges Manufacturer : Vermont Gage Material : tool_steel ModelNumber : 111324450 NumberOfItems : 1 PartNumber : 111324450 ProductSiteLaunchDate : 2011-03-23T00:00:01-00:00 Style : Class ZZ UnitCount : 1