This bahco 7 piece tin bit set contains the following 1 x phillips 25mm bit ph21 x pozi 25mm bit pz24 x torx 25mm bits t15 t20 t25 t301 x universal bit holder 14 inch drive the bits are made from high performance alloy steel and have a titanium nitride finish they are extremely wear resistant when used for high volume production and continuous use at normal torque levels supplied in a handy plastic storage case