Screwdriver head set, Black&Decker, 10 pc + adapter, Ph, Pz.

Made of special tool steel, with Chrome-Vanadium percentage, for more working resistance. Heat and chemically treated. With embossed work surface and coated with Oxide layer, for minimum consumption during long working hours of both the head and the screw. Ideal for professional uses, by professionals in various fields. Contains Standard Heads: PZ and PH.