Specification Brand : HARFINGTON BulletPoint1 : Size - Total Size: 95x60mm/3.7"x2.36"(L*W); Thickness: 0.12mm/0.005". BulletPoint2 : Material - The SEC size estimation chart is made of PET clear plastic, which is resistant and unbreakable. This film transparent ruler is very thin, as thin as paper, and much thinner than ordinary rulers. BulletPoint3 : Features - Transparent film SEC pattern used for quality inspection and defect size estimation, with high accuracy, excellent transparency, minimal error caused by temperature, and long-term use. BulletPoint4 : Applications - The high-precision film ruler is perfect for factories, research institutes, measuring rooms and workshops. It can be used to measure the area of a wide variety of products, accurately detect and calibrate various measuring instruments, measure the reduction rate of photo printing films and detect the size of optical projection maps, etc. BulletPoint5 : Notice - You can use it with a magnifying glass. A magnifying glass makes it easy to measure the length of two or more consecutive points. We don't need expensive measuring instruments to get accurate readings. ExternallyAssignedProductIdentifier1 : 0768774995624 ExternallyAssignedProductIdentifier2 : 768774995624 GpsrSafetyAttestation : 1 IncludedComponents : Block, carrying case, certificate ItemName : HARFINGTON 5pcs High Precision SEC Size Estimation Chart 8cm 0.5mm Transparency Flaw Detection Film Ruler for Diameter and Line Width Defects Measuring ItemPackageDimensions_Height : 13.7922 centimeters ItemPackageDimensions_Length : 1.7018 centimeters ItemPackageDimensions_Width : 10.0076 centimeters ItemPackageQuantity : 5 ItemTypeKeyword : flaw-detection-tools Manufacturer : HARFINGTON Material : Plastic MeasurementAccuracy : HIGH ModelNumber : 4P8x9A60 NumberOfItems : 5 PartNumber : hta230918hh000071 PowerSourceType : Corded Electric ProductDescription : The SEC size estimation chart is made of PET clear plastic, which is resistant and unbreakable. This film transparent ruler is very thin, as thin as paper, and much thinner than ordinary rulers. Transparent film SEC pattern used for quality inspection and defect size estimation, with high accuracy, excellent transparency, minimal error caused by temperature, and long-term use. The high-precision film ruler is perfect for factories, research institutes, measuring rooms and workshops. It can be used to measure the area of a wide variety of products, accurately detect and calibrate various measuring instruments, measure the reduction rate of photo printing films and detect the size of optical projection maps, etc.