The PH2 x 6.35 x 150 mm, 1/4" 56H577 screwdriver bit from GRAPHITE is a PH2 bit with a size of 6.35 and a length of 150 mm. It is mounted on a 1/4" thread. It is characterized by high resistance to deformation and is recommended for high-frequency work. The element is made of S2 steel. This bit is recommended for Phillips screws and will work well in any professional or DIY workshop.