Dorman 415-103 Thread Checker on a String

Thread Checker on a String

Convenient and easy to use, Dorman's Thread Checker saves you the time and hassle of estimating the size of the nut or bolt you need. Get the job done right-the first time-with this handy tool. For standard and metric measurements Checks male and female threads Mounted on a long, durable cable with looped end for repeated use and simple storage on the wall or in a drawer Perfect for use in the repair shop, at home, in the garage, and many other places