Accurate calibration of a tool determines its readiness for carrying out maintenance tasks. Tools work correctly when they are calibrated correctly. Some basic tools such as screwdrivers and hammers do not need calibrating, but other tools do. Equipment calibration ensures these tools are fit for purpose.
One example of a tool that needs calibration is an electrical tester or electrical metre measuring voltage. Torque wrenches and torque screwdrivers also need to be calibrated, as do measuring devices such as Vernier calipers and laser distance metres. Tools that help maintain health and safety such as gas detectors and insulation testers must of course also be calibrated and maintained correctly to ensure they work as required.
As part of tool inventory control, engineers should know which tools need to be calibrated. It’s important to maintain a list so these tools are calibrated correctly and to the required standards. For example, there are strict quality assurance standards that need to be maintained for some tools, while manufacturers of tools may specify calibration requirements.