Screwdriver bit Proline 58504, 1 pc, length 100 mm

The Proline 58504 screwdriver bit is a single-piece replacement bit with a length of 100 mm designed for use in compatible bit holders and power screwdrivers. Made to provide additional reach compared with standard short bits, it helps access recessed or deep-set fasteners while maintaining the standard profile required for common fastening tasks. The bit is intended for general fastening and maintenance work where a long, single-profile bit is needed.

Advantages

This 100 mm Proline screwdriver bit delivers extended reach without the complexity of multi-piece extensions. Its single-piece construction reduces the risk of play or joint failure and ensures stable torque transfer from driver to fastener. The standard profile makes it compatible with a wide range of hand tool and power tool bit holders, and its length improves accessibility in narrow or recessed applications.

Suitable for

• Reaching recessed screws in furniture and cabinetry
• Automotive and machinery maintenance where fasteners sit deep
• General assembly and repair tasks requiring extended reach
• Use with magnetic or quick-change bit holders and power screwdrivers

Key specifications

• Type: single-piece screwdriver bit
• Length: 100 mm
• Profile: standard screwdriver profile (compatible with common bit holders)
• Quantity: 1 piece

How to use

Insert the Proline 100 mm bit into a compatible bit holder, quick-change chuck, or the accessory socket of a power screwdriver until it seats securely. Use the appropriate speed and torque settings for the material and fastener type. When finished, withdraw the bit from the holder and store it in a protected case or bit organizer to prevent wear or contamination. Inspect the bit tip before use and replace it if worn to avoid damaging fasteners.

Usage recommendations

For best results, pair the bit with a magnetic or locking bit holder to minimize wobble and improve control in deep or recessed applications. Avoid using excessive torque that exceeds the bit material limits and match the bit profile precisely to the fastener to prevent stripping.