SPAX 4CUT cutter

The square characteristic of a SPAX at the transition from the thread to the shaft is referred to as a SPAX 4CUT cutter. This has the advantage of reducing the torque required for screwing in by up to 60%. The SPAX can thus be used evenly and without the use of much force; this also saves the energy reserves of a battery-powered tool. The  SPAX 4CUT cutter is generally used for screws exceeding 160 mm in length.