Screwdriver bit set Bosch 100 pcs PZ2 extra hard 25 mm hexagonal shank 1/4"

Bosch 100 pcs PZ2 extra hard 25 mm screwdriver bit set with a 1/4" hexagonal shank is designed for repeated fastening operations with Pozidriv screws. Each PZ2 tip measures 25 mm in length and is made from a modified S2 steel with an optimised heat treatment to deliver extra-hard durability. The 1/4" (6.35 mm) hexagonal shank fits standard bit holders, quick-change chucks and internal hex tool holders, providing reliable torque transfer for workshop and site applications. The bits are supplied in a polybag for compact storage and easy transport.

Advantages

The extra-hard S2 modified steel and heat treatment provide high wear resistance and extend service life under frequent use. A tapered torsion zone reduces the risk of tip breakage by absorbing torque peaks and improving durability during heavy-duty fastening. The 1/4" hexagonal shank ensures a secure connection with chucks and holders, allowing efficient torque transmission and fast bit changes. Supplied as a 100-piece set of PZ2 tips, it supports bulk tasks and reduces interruptions for bit replacement.

Suitable for

• Professional and DIY fastening of Pozidriv screws
• Assembly lines and repetitive workshop tasks
• Automotive trim, furniture assembly and joinery work
• Use with impact drivers and quick-change bit holders (where compatible)

Key specifications

• Tip type: PZ2 (Pozidriv)
• Quantity: 100 pieces
• Bit length: 25 mm
• Material: S2 modified steel with optimised heat treatment
• Shank: 1/4" (6.35 mm) hexagonal shank
• Design feature: tapered torsion zone for torque peak absorption
• Packaging: polybag for storage and transport

How to use

Select a PZ2 bit from the set and insert the 1/4" hex shank into a compatible bit holder, quick-change chuck or screwdriver. Ensure the bit is fully seated to prevent slipping. Apply steady pressure and operate the driver at appropriate speed and torque for the screw and material. Replace worn or damaged bits to maintain drive accuracy and avoid screw or workpiece damage. Store the bits in the supplied polybag when not in use to keep the set organised.

Usage recommendations

For optimal performance, match the PZ2 bit to Pozidriv screws of the correct size, avoid excessive side loads, and use suitable driver torque settings. Inspect tips regularly for wear and replace bits showing rounding or deformation to maintain efficient fastening and prevent damage to screws and fasteners.