This variant of the Bosch PRO Impact Control Torsion Pozidriv Bit is a PZ1, 55mm bit supplied in a pack of 2. The extended 55mm length makes this bit particularly useful when working in deeper recesses, with screw guides, or when extra reach is needed during installation. The PZ1 head size suits smaller screws found in electrical fittings, cabinetry, and light fixtures, and the longer format helps maintain control and alignment in awkward positions. The twin-pack ensures a ready backup is always available. Built from heat-treated modified steel, each bit incorporates an extended torsion zone to absorb torque stress at the tip and resist breakage. Up to 50x more robust than the Bosch Extra Hard Bit (2607001528), with a 1/4" impact-rated hex shank for compatibility with impact drivers and drill drivers. Features and Benefits: • Up to 50x more robust than Bosch Extra Hard Bits for superior longevity • Heat-treated modified steel provides strength and high-torque resistance • Extended torsion zone absorbs stress at the tip to prevent snapping • 1/4" impact-rated hex shank compatible with impact drivers and drill drivers • Colour-coded rings and laser markings for quick on-site identification Specifications: Head Type: PZ1 Length: 55mm Pack Quantity: 2 Contents: • Pack of 2