The Wera 05134909001 is a precision-engineered Phillips screwdriver bit designed for fastening Phillips screws. Measuring 152x7x6 mm, this bit is longer and slimmer than standard bits, making it ideal for reaching screws in hard-to-reach areas.

The Phillips screwdriver bit features a profiled design that provides superior grip and torque transfer, ensuring a secure and stable fastening. Additionally, the bit is engineered to be particularly hard, making it ideal for use with semi-hard materials that require extra strength and durability.

Designed for use with a 1/4" hexagon drive that is compatible with the Wera connecting series 4, this bit is easy to use with a range of power tools. Whether you're a professional or DIY enthusiast, this bit is an essential tool that provides the strength, precision, and durability you need to get the job done right.

Overall, the Wera 05134909001 is a high-quality, versatile bit that offers exceptional performance and reliability. 

A stands for aviation. A bits are particularly hard bits with a sharpedged profile which e.g. penetrates screw profiles full of paint (such as on fuselage panels) ensuring a dependable transfer of force between the bit and the screw.