Wiha 00666 Screwdriver Bit

The Wiha 00666 screwdriver bit is a precision Phillips PH2 tip bit with a length of 150 mm and a lightweight construction of 32.8 g. Designed for controlled fastening in confined or recessed screw locations, this bit offers a balance of reach and maneuverability for tasks that require accurate torque transfer. Its geometry and material choice are intended to provide consistent engagement with Phillips fasteners while resisting wear during repeated use.

Advantages

This screwdriver bit provides reliable tip fit and reduced cam-out due to its precisely formed Phillips PH2 profile. The 150 mm length gives extra reach without sacrificing control, and the low weight of 32.8 g improves handling during extended use. The bit is suitable for insertion in standard bit holders and quick-change chucks, offering compatibility with common drivers and impact adapters where PH2 bits are applicable.

Suitable for

Key specifications

How to use

Insert the bit securely into a compatible bit holder or driver until it seats fully. Use steady pressure and align the bit concentrically with the screw head to minimize cam‑out and wear. For repeatable results, apply moderate torque appropriate to the screw size and material; avoid excessive force that could damage the screw head or the bit tip. After use, store the bit in a protector or bit holder to keep the tip free from nicks and contamination.

Recommendations

For optimal longevity, avoid using this precision Phillips PH2 bit with inappropriate impact settings or on damaged screw heads. Inspect the tip periodically for wear and replace if rounding or chipping is visible. Use the 150 mm length to reach recessed fasteners while maintaining a controlled grip on the driver.