For Professional Level Testing of Torque Wrenches and Screwdrivers, Pro Torque Tools offers torque wrench calibration tools and torque calibration equipment made by CDI of Snap-On Industrial Brands and Norbar. Browse our selection of Snap-On torque wrench calibration equipment including CDI calibration systems and CDI calibration monitors built to accurately test the calibration of your torque tools. To help you do the calibration, we also have CDI transducer kits and CDI mechanical loaders. Our CDI testing accessories make sure you have everything you need for calibrating your torque tools. It is important to make sure your torque tools are appropriately and accurately calibrated, and we proudly provide the CDIequipment necessary to accomplish this.