Non-slip grip with a rugged, durable housing. High contrast, backlit LCD screen display . Users press only four buttons to operate the tool: power on/off; unit of measurement (ft./lbs., in./lbs., N-m); torque target up; and torque target down. Users can quickly switch among three types of measurement, eliminating the need to have three separate tools . Performs consistently and withstands even the most heavy-duty applications Day in and day out, mechanics routinely tighten a variety of components to specific torque values. Despite their vast experience and attention to detail, even the best and most efficient mechanic can occasionally over-tighten or under-tighten a component, leading to vehicle damage or even catastrophic failure. This new 36-tooth gear digital torque wrench eliminates the possibility of human error with a series of lights and alarms that immediately alert the user to torque readings that are "over or under" entered values.