3855/1 TS bits, stainless, PZ 3 x 25 mmHigh quality bits out of stainless steel for Pozidriv screws. Wera stainless are made out of stainless steel which prevents the formation of unsightly extraneous rust. Come with Torsion zone: Torsion bits take-up torque peaks and absorb them in the Torsion zone. This prevents premature wear and extends the service