A clearly audible and detectible click means you know when the selected torque is reached, with a range of 1 to 5Nm for the screws that require precise torque. Designed for high repeatability within + or - 6% accuracy. The scale is clear and easy to read. The standard 1/4" bits are clamped in a spring release chuck and a 1/4" hex to square adapter is included. The kit is supplied in a sturdy plastic case.