Specification Brand : Jwthee BulletPoint1 : 【Application】---4pcs Stainless Steel Radius Gauge are four radium gauges in different shapes and sizes to meet you various need. Very useful gauge for tool & die makers, machinists, and many other worker to check the radius of tools. BulletPoint2 : 【Elaborate Design】---Each scale on the blade of the Radius Gauge is engraving, which is clear to read and easy to identify. Don't worry that long-term friction will make the scale unclear. BulletPoint3 : 【High Quality】---All the radius gauge are made of high quality steel, heat processed with finish, high strength, good resilience, elegant appearance. Surface polished smooth, applying anti-rust oil to prevent rust. BulletPoint4 : 【Easy To Use】---Each leaf is clearly marked, convenient to identify which leaf you need. So it can check the convex and concave surfaces. The convex pattern is used to detect the concave surface arc, and the concave template is used to detect the convex surface arc. BulletPoint5 : 【Package List】---4 * Radius Gauges; They are well packed in a plastic box, easy for carry and store. The 360-degree Locking Screw design allows you to unfold or fold it easily. Color : Silver Tone GpsrSafetyAttestation : 1 IncludedComponents : Digital Radius Gauge ItemName : 4pcs Stainless Steel Radius Gauge, R0.3-1.5/ R1-6.5/ R7-14.5/ R15-25 Portable Concave Convex External Internal Arc Measuring Tool for Tool and Die Makers Check ItemPackageDimensions_Height : 0.2 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 1 ItemTypeKeyword : radius-gauges Manufacturer : Jwthee Material : Stainless Steel MeasurementAccuracy : 0.01mm ModelName : Jectseqvcw0ia6t3 ModelNumber : 3072 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Jwtheeyxkt9gpsub ProductDescription : Features: Made of stainless steel, this radius gauge is and resistant to rust.This radius gauge has two types of leaves so it can check both convex and concave surfaces.Each leaf is clearly marked, convenient to identify which leaf you need.There are four radium gauges in different shapes and sizes to meet you various need. Very useful gauge for tool & die makers, machinists, and many other worker to check the radius of tools. Specification: Material: Stainless steel Measuring Range: R0.3-1.5/ R1-6.5/ R7-14.5/ R15-25Weight: 270g / 9.5oz(approx.)