Impact bits with a torsion zone, to allow the screwdriver bit to flex for reduced breakage and to withstand the changes of load associated with high torque use. • Long Service Life • Torsion zone for increased durability • Specially designed for impact drivers • Precision profile for better fit • Magnetic tip to aid holding and starting • DIN 8764 standard • Taiwan S2 grade steel construction • HRC60-61 hardened for optimum strength • Black phosphate coating for corrosion protection and increased life • Storage case Details: Drive: 1/4" Hex Length: 25mm Profile: PZ2 Quantity: 20 pieces Box contains10 packs of 20