The DeWalt tough quality professional Pozidriv screwdriver torsion bits come with a hardened core for extra strength and durability.
The 'Flexible Torsion Zone' absorbs torque peaks and reduces breakage (Torsion bits only).
The 'Extra Grip' ribs grip the screw and reduce slipping (specific bits only).
The DeWalt DEWDT7211QZ Torsion bits (5) are the following size:
Pozi bit PZ1: 25mm