Specification Brand : ZJchao BulletPoint1 : [Portable Solution] Conveniently assembled onto a wire loop, making it easy to carry around and use in any workshop or construction site. BulletPoint2 : [Accurate Identification] Upgraded double-sided printing size for precise inch and metric thread identification, for distinguishing between similar threads. BulletPoint3 : [ Design] Features male threaded studs and female threaded holes on each gauge, made of premium zinc material for long-lasting use. BulletPoint4 : [Premium Quality] Rustproof and construction tool ideal for workers, providing accurate and thread identification for various applications. BulletPoint5 : [Multiple Sizes] Includes 26 male and female gauges, 14 inch and 12 metric gauges, covering a wide range of sizes for nuts and screws. Color : Blue IncludedComponents : portable precise thread size checker keychain ItemDisplayWeight : 1.9 pounds ItemName : Nuts Screwbolts Thread Checker Male Female Thread Identification Tool with Inch and Metric Gauges for Workers Workshop ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 15 centimeters ItemPackageDimensions_Width : 15 centimeters ItemTypeKeyword : thread-gauges Manufacturer : ZJchao Material : stainless steel MeasurementAccuracy : +/-1% ModelName : Pissente4emicn630f-11 ModelNumber : ZJchaogzhpnwf8iv NumberOfItems : 1 NumberOfLithiumMetalCells : 1 PartNumber : ZJchaogzhpnwf8iv ProductDescription : [Portable Solution] Conveniently assembled onto a wire loop, making it easy to carry around and use in any workshop or construction site. [Accurate Identification] Upgraded double-sided printing size for precise inch and metric thread identification, for distinguishing between similar threads. [ Design] Features male threaded studs and female threaded holes on each gauge, made of premium zinc material for long-lasting use. [Premium Quality] Rustproof and construction tool ideal for workers, providing accurate and thread identification for various applications. [Multiple Sizes] Includes 26 male and female gauges, 14 inch and 12 metric gauges, covering a wide range of sizes for nuts and screws.