Specification Brand : GZTIGWELD BulletPoint1 : Measures inside and outside diameter, depth and thickness of gemstone and pearls-mounted or loose. BulletPoint2 : Measures both millimeters and carats directly from the face of the gauge. BulletPoint3 : The hardened anvils resist wear and maintain accuracy longer. BulletPoint4 : Measures from 0 to 23 mm in 0.1 mm divisions with 0.05 mm instrumental error. BulletPoint5 : Multi-functions: Checks under cut depth, porosity comparision, amount of porosity per linear inch and crown height Color : Silver ExternallyAssignedProductIdentifier : 8851668514642 ExternallyAssignedProductIdentifier1 : 783902789524 ExternallyAssignedProductIdentifier2 : 0783902789524 ExternallyAssignedProductIdentifier3 : 00049659524642 IncludedComponents : 1 X Feeler Gauge ItemDisplayDimensions_Height : 0.5 inches ItemDisplayDimensions_Length : 5.5 inches ItemDisplayDimensions_Width : 2.5 inches ItemName : DIAMOND TESTER- DIAL GAUGE ItemPackageDimensions_Height : 15.2908 centimeters ItemPackageDimensions_Length : 1.8034 centimeters ItemPackageDimensions_Width : 7.1882 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : thickness-gauges Manufacturer : Presidium Material : Metal MeasurementAccuracy : INCH ModelNumber : V-WAC NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : V-WAC ProductDescription : This Diamond Tester- Dial Gauge measures inside and outside diameter, depth and thickness of gemstone and pearls-mounted or loose. This gauge measures both millimeters and carats directly from the face of the gauge, eliminating the need to look up conversion charts. It is the only gauge that incorporates the latest state-of-the art nonmetallic lubrication free rack and pinion technology. The hardened anvils resist wear and maintain accuracy longer. The Presidium Dial Gauge measures from 0 to 23 mm in 0.1 mm divisions with 0.05 mm instrumental error. It comes with a handsome hard plastic protective carrying case, an attachment for measuring mounted stones for high settings, instruction booklet and a chart for estimating weights or stones. ProductSiteLaunchDate : 2010-02-27T19:08:32.061Z Range : 0.0015-0.2" Size : 91x53x1.2mm Style : Hand tool SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1