The calibration of all torque wrenches is performed the forty three certified testers, by qualified personnel. Each wrench will tested over the full range of tool, to comply with current specifications.
Each tool will be affixed with a sticker giving the date the wrench was calibrated. Space is provided for the customer to write in recall date, for tool to recalibrated. Angle cannot this you since we not know how often you will using the tool daily, weekly, or once in a while.