Digital Socket Sizing Tool

With the Digital Socket Sizing Tool, you¡¯ll never have to measure twice again! After calibrating your device, align the calipers around the bolt head or nut you wish to measure, then press the ¡°hold¡± button to save its size ¡ª a precise measurement will then be reflected on the digital display screen. It also identifies the inner and outer diameters of piping, along with a variety of other household objects. Ideal for mechanics, carpenters, plumbers, electricians, engineers, etc. Measures Wrench/Socket sizes in SAE and Metric (1/4″ and 6mm through 2 1/8¡± and 54mm ranges). Runs on 1 watch battery (included).