Bosch Extra Hard Screwdriver Bit Compact Sets

The Bosch Extra Hard Screwdriver Bit Compact Set 2608522129 contains extra-hard S2 modified steel bits designed for universal screw-driving with screwdrivers and drill drivers. The compact set is built for durability and precision: an optimised heat treatment delivers increased hardness, while the 1/4-inch external hex shank ensures compatibility with standard bit holders.

Advantages

Bits made from S2 modified steel with an optimised heat treatment offer extra-hard quality for extended life and consistent performance. A tapered torsion zone absorbs torque peaks and vibrations during screw-driving, reducing the risk of bit breakage and screw damage. The 1/4-inch external hex shank provides secure fit and broad compatibility with common tools.

Suitable for

• General screw-driving with manual screwdrivers
• Use with drill drivers and impact drivers (with compatible holders)
• Work requiring higher bit hardness and resistance to wear
• Portable toolkits and on-site jobs where compact storage is needed

Key specifications

• Brand: Bosch
• Model / MPN: 2608522129
• EAN: 3165140704281
• Material: S2 modified steel (extra hard)
• Shank: 1/4-inch external hex

How to use

Select the correct bit for the screw head type and insert the 1/4-inch hex shank into the screwdriver or drill driver chuck/bit holder until it locks. Drive screws at appropriate speed and torque settings for the screw and material. Allow the tapered torsion zone to absorb torque peaks; avoid excessive force beyond the tool’s recommended limits to prevent wear or breakage.

Recommendations

For longest life, match bit type to screw head precisely, avoid side loading, and use suitable torque settings. Store the compact set in a dry place to prevent corrosion and inspect bits for wear before use.