• For Pozidriv head screws, Stainless Steel bits • 1/4" hexagon drive. DIN 3126, ISO 1173, style C 6.3 • Ideal for use on stainless steel screws • Torsion zone that absorbs torque peaks avoiding premature wear and tear and improving service life • High performance alloy steel • Available in blister card (2 pieces) and plastic box (10 pieces)