This wera 10 piece bit check bi torsion diamond set comprises the following 1 x rapidaptor bit adaptor 9 x 25mm pozi screwdriver bits pz1 x2 pz2 x5 pz3 x2 wera screwdriver bits are designed for tough applications found in both trade and industry the strictly controlled manufacturing processes helps fulfil the highest quality requirements they provide the transfer of high torque values and deliver a long service life