Specification Brand : Ailgely BulletPoint1 : [Premium Material] Made of sturdy and rustproof zinc, ensuring a long service life and practicality for construction workers. BulletPoint2 : [Portable Solution] Assembled on a wire loop, this thread checker is for on-the-go use and includes 26 male and female gauges, 14 inch, and 12 metric gauges. BulletPoint3 : [Wide Range] Includes 14 inch size part numbers and 12 metric sizes, making it a versatile and essential tool for various construction projects. BulletPoint4 : [Easy to Use] Each gauge features a male threaded stud and a female threaded hole, convenient for distinguishing between similar inch and metric threads. BulletPoint5 : [Accurate Thread Identification] Upgraded double-sided printing for easy identification of inch and metric threads on nuts and screw bolts. ItemName : Thread Checker Nuts Screwbolts 26 Male Female Identification Tool 14 Inch 12 Metric Gauges for Construction Workers ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 15 centimeters ItemPackageDimensions_Width : 15 centimeters ItemTypeKeyword : thread-gauges Manufacturer : Ailgely ModelNumber : Ailgelyp9xtcde4gq NumberOfItems : 1 PartNumber : Ailgelyp9xtcde4gq ProductDescription : [Premium Material] Made of sturdy and rustproof zinc, ensuring a long service life and practicality for construction workers. [Portable Solution] Assembled on a wire loop, this thread checker is for on-the-go use and includes 26 male and female gauges, 14 inch, and 12 metric gauges. [Wide Range] Includes 14 inch size part numbers and 12 metric sizes, making it a versatile and essential tool for various construction projects. [Easy to Use] Each gauge features a male threaded stud and a female threaded hole, convenient for distinguishing between similar inch and metric threads. [Accurate Thread Identification] Upgraded double-sided printing for easy identification of inch and metric threads on nuts and screw bolts.