Specification Brand : Hyuduo BulletPoint1 : [STAINLESS STEEL] Made of excellent stainless steel material, hard and wear resistant, not easy to deform or rust. BulletPoint2 : [COMPACT SIZE] This utility model has a compact structure, a simple and reasonable design, and is convenient to use and carry. BulletPoint3 : [MEASURING RANGE] With scale markings, the measurement range is 3-15mm, with a wide range of applications. BulletPoint4 : [MAIN PURPOSE] The aperture gauge is mainly used to measure the inner diameter and aperture of thin-walled parts, plastic pipes, etc. BulletPoint5 : [HIGH ACCURACY] structure design, with accuracy of 0.1mm, convenient and quick measurement. ExternallyAssignedProductIdentifier : 7631211041570 IncludedComponents : No ItemName : Taper Feeler Gauge, Aperture Gauge Stainless Steel Conical Inner Diameter Inspection Measurement Tool 3‑15mm for Measure The Inner Diameter, Thickness ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 21 centimeters ItemPackageDimensions_Width : 2 centimeters ItemTypeKeyword : industrial-feeler-gauges Manufacturer : Hyuduo MeasurementAccuracy : 0.1mm ModelNumber : Hyuduoi5convxs39 NumberOfItems : 1 PartNumber : Hyuduoi5convxs39 ProductDescription : Specification: Item Type: Aperture Gauge Material: Stainless Steel Measuring Range: Approx. 3-15mm / 0.1-0.6in Type: Thread Gauge Accuracy: 0.1mm