Screwdriver bit socket FELO FL03913010, SW 13, 66 mm

The FELO FL03913010 screwdriver bit socket is a compact, replaceable bit/socket designed for fastening tools that require a 13 mm flat wrench interface and a 66 mm overall length. Built for mechanical assembly, repair work and maintenance tasks, this piece provides a precise connection between the tool and the fastener while keeping the working profile slim. The design focuses on reliable torque transfer and compatibility with common bit-holding adapters and ratchet drives.

Advantages

The socket's SW 13 flat-wrench interface ensures secure seating and stable torque transmission. Its 66 mm length offers a balance between reach and compactness, allowing access to moderately recessed fasteners without excessive overhang. Manufactured to match FELO quality standards, the bit socket is suitable for repeated use in workshop and field environments where consistent tool behavior is required.

Suitable for

• Mechanical assembly and industrial production lines
• Maintenance and repair of machinery and equipment
• Automotive and bicycle service tasks requiring a 13 mm flat wrench connection
• General workshop fastening where compact bit length is preferred

Key specifications

• Wrench interface size: 13 mm (SW 13)
• Overall length: 66 mm
• Type: replaceable screwdriver bit socket for fastening tools
• Intended use: torque transfer between drive tool and fastener
• Compatibility: designed for common bit holders, adapters and ratchet drives

How to use

Insert the bit socket into a compatible bit holder, adapter or ratchet drive until it seats securely. Place the socket over the fastener head and apply torque using the chosen drive tool, ensuring alignment to avoid rounding the wrench flats. For removal, reverse the drive direction and withdraw the socket once the fastener is loosened. Inspect the socket for wear or damage before use and replace if machining marks or deformation are present.

Usage recommendations

For reliable performance, use the FELO bit socket with matching-size tools and avoid applying impacts or overload torque beyond the socket’s intended mechanical limits. Keep the socket clean and periodically check for wear on the wrench flats. Use appropriate personal protective equipment when performing maintenance or repair tasks.