Eastwood Micrometer Torque Wrench is a highly advanced torquing tool, equipped with a mistake-proof signal function, superior calibration accuracy and a user-friendly interface. This long-lasting tool comes with a professional certification letter and carries a full lifetime warranty. The patent-pending cam wheel design eliminates friction to improve accuracy, and the special link design reduces wear and tear, extending calibration life by 200% to 300%. The two point external calibration access promotes precision adjustment, and the low stress designs eliminate the need to adjust the wrench to its lowest setting after each use. This torque wrench from Eastwood is the pinnacle of torquing tool quality in the automotive industry.