Made of special tool steel and heat and chemically treated. Coated with black oxide, so as not to damage the head of the mounting screws and the screwdriver tip itself. Ideal for disassembling and mounting screws of everyday objects in the living environment. Practical in use, due to the support handle. The S and PH standard, respectively (PH0X75, PH1X100, PH2X125, S3X75, 4X100, 6.5X125), make it possible to disassemble most of the screws present in everyday furniture.