Screwdriver Bit Wiha 28593

The Wiha 28593 screwdriver bit is a 4 mm hex bit designed for precision fastening in confined or narrow-access applications. With an extra slim blade geometry and a length of 175 mm, it provides reach and control while remaining lightweight at 17.25 g. The bit is intended for controlled fastening where a pre-set torque is applied.

Advantages

Extra slim blade geometry suits work in tight spaces. The blade is made from high-quality chrome-vanadium-molybdenum steel, through-hardened and chrome-plated for durability and corrosion resistance. Wiha ChromTop® finish on the tip ensures a precise fit with fasteners. Colour-coded red for easy identification.

Suitable for (tasks / use cases)

Key specifications

How to use

Select the 4 mm Wiha 28593 bit and insert it into the compatible driver or bit holder. Engage the bit fully to ensure the ChromTop® tip seats correctly in the fastener head. Use the appropriate pre-set torque setting on your torque tool to perform controlled fastening. After use, wipe the bit clean and store it in a designated bit holder to maintain tip condition and colour identification.

Recommendations

Use with drivers and torque tools compatible with 175 mm bits and follow the torque tool manufacturer's settings. Inspect the tip before use and replace the bit if the tip shows excessive wear or deformation to maintain fit and prevent fastener damage.