Wiha 40660 screwdriver bit Hexagon 30 mm

The Wiha 40660 screwdriver bit Hexagon 30 mm is a precision tool engineered for professional screwdriving tasks and delicate fastening applications. Built to meet stringent industry standards, this bit offers reliable performance, consistent torque transfer, and high durability during detailed mechanical and assembly work. Its compact design and quality material composition make it a dependable component for daily use in professional environments.

Advantages

Manufactured from high-grade chrome-vanadium steel and thoroughly hardened, this screwdriver bit delivers exceptional wear resistance and long-lasting operational reliability. The precise manufacturing ensures a secure fit with fasteners, reducing the risk of slippage or damage to screw heads. Designed to integrate seamlessly with standard bit holders and compatible tools, it optimizes efficiency in professional workflows.

Suitable for

• Fastening particularly small screws in electronics and delicate mechanisms
• Precision assembly and mechanical repair work
• Professional workshop and industrial maintenance tasks

When it may not be suitable

This screwdriver bit is not designed for heavy-duty construction applications, high-torque power driving with large fasteners, or tasks requiring non-hexagonal drive profiles. Using this bit outside its specified application range may lead to premature wear or tool damage.

Key specifications

• Hexagon socket size: 4 mm
• Tip type: Hexagon
• Length: 30 mm
• Weight: 4 g
• Product dimensions: 30 x 7 x 7 mm
• Material: High-grade chrome-vanadium steel, through hardened
• Compliance standards: DIN 3126, ISO 1173, Style C4

How to use

Insert the screwdriver bit firmly into a compatible standard bit holder or drive tool until it is securely seated. Align the hexagon tip carefully with the corresponding screw head to ensure full engagement. Apply steady, controlled pressure and torque while fastening or unfastening to maintain precision and prevent cam-out. Always select the correct fastener size that matches the 4 mm hexagon socket.

What to consider before purchase

• Verify that your existing tools or bit holders are compatible with Style C4 and 30 mm length bits
• Check the required fastener dimensions to ensure the 4 mm hexagon socket matches your specific needs
• Assess the intended application to confirm that the tool is suitable for small screw fastening

Store the screwdriver bit in a dry environment and clean it periodically to maintain its material integrity and prolong its service life during professional operations.