raises and lowers at the end of the tightening operation, creating a simple torque limiter. POZIDRIV bits are marked with "PH", followed by a number.

The POZIDRIV imprint:

It was developed on the same principle as the Phillips, except that the footprint has a different shape, like this that it does not slip out at the end of the screwing process of the bit. This is the screwdriver (pneumatic or electric) that turns itself stops because it is equipped with a torque limiter. This reduces operator fatigue on large series. A higher torque can be applied. POZIDRIV bits are marked "PZ" followed by a number.