Product name: Nut assembly tool Specification: 44 pieces screw gauge aluminum silver black Model Number: Nut and Bolt Thread Checker The strong build ensures that each gauge is sturdy and reliable, making it an essential tool for any workshop or diy enthusiast<br><br>Included specifications: 44 kinds of specifications - M3x0. 5, M4x0. 7, M5x0. 8, M6x1. 0, M7x1. M8x1. 0, 0, M8x1. M10x1. 0, 25, M10x1. 25, M10x1. 5, M12x1. 25, M12x1. 5, M12x1. 75, M14x1.5, M14x2.0, M16x1.5, M16x2.0, M20x1.5, M20x2.5, M20X2.0, M24x2.0, M24x2.0. INCHES: 6-32-40, 32, 8-10 to 24, 32, 10-1/4-20, 1/4-28, 18, 5/16-5/16-24, 3/8-16, 24, 3/8-7/16-14, 20, 7/16-1/2-13, 1/2-20, 5/8 9/16 9/16-12, 18, 11, 18, 5/8-3/4-10, 3/4-16, 1-8, 1-12 Accurate and Fast Measurement:accurately measure bolt size and thread gauge with our screw size and thread gauge - the fast size finder ensures you can quickly identify the correct size and avoid frequently mistakes Save Time and Money:with our nut & bolt thread checker - avoid misplace and loss by having a complete set of 44male/female gauges for both inch and metric sizes, ensuring you always have the right nut and bolt gauge at your fingertips Orderly and easy to carry:stay organized with our thread detector set - every thread checker is inserted into well cut foam in the boxes, making it easy to keep your bolt and nut identifier gauge in order and ready for use. Colour:Black & Silver Material:aluminum<br><br>Package Contents: 44 * Nut assembly tool<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.