[Measure Threads Fastand Precisely]Effortless Size Checks in Seconds! Say goodbye to thedays of test-fitting random sockets to find the right size. Savetime and effort. Easy thread size identification with reduced errorrisk, ideal for professionals and DlY enthusiasts. [Durable Thread Checker]The bolt and nut identifier gauge is made of iron. Ensuring maximum thread strength and precision accuracy for both standard and metric nuts, sturdy and durable. [Effortless Size Checksin Seconds!]With a sliding knob and clear size markings, this tool enablesquick and precise measurement of bolt sizes. Designed for fast, precise measurement, eliminating guesswork. [Elevate Your Craftsmanship]Meet the ultimate tool for DlY and professional tasks. With anintuitive design and durable build, it's ideal for quick problemsolving and perfect results. [Convenient Design]Equipped with a keychain loop, this thread size checker can be conveniently attached to your keys or belt, ensuring it's always within reach when you need it. Colour:Photo Color Material:Stainless steel Package Contents: 3 x Precise Thread Size Checker Keychain set 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.