Nut Driver Bit Wera 869/4 M SB

The Wera 869/4 M SB Nut Driver Bit is a metric nutsetter designed for hexagon-head screws with a 1/4" (6.3 mm) hex shank and a 25.4 / 4 mm shank length. Made in the Czech Republic, the bit features a strong permanent magnet to hold fasteners securely and is intended for use with holders compliant with DIN ISO 1173-F 6.3.

Advantages

The bit provides precise engagement with hexagon-head screws and reliable torque transfer thanks to accurate manufacturing. The built-in permanent magnet improves handling by holding nuts and screws in place during insertion. Its 1/4" hexagon shank fits standard 6.3 mm holders, ensuring compatibility with common hand and power tool adapters.

Suitable for

• Assembly and maintenance of machinery and equipment using metric hexagon-head screws
• Workplaces that require use of 1/4" (6.3 mm) hex holders per DIN ISO 1173-F 6.3
• Situations where a magnetic bit improves fastener retention and one-handed operation

Key specifications

• Model: Wera 869/4 M SB
• Brand: Wera
• MPN: 05073505001
• EAN: 4013288105738
• Type: Metric nutsetter for hexagon-head screws
• Shank: 1/4" hexagon (6.3 mm), suitable for DIN ISO 1173-F 6.3 holders
• Shank length: 25.4 / 4 mm
• Feature: Strong permanent magnet
• Made in: Czech Republic

How to use

Insert the 1/4" hex shank of the Wera 869/4 M SB into a compatible 6.3 mm holder or adapter. Place the magnetic nutsetter onto the hexagon-head screw or nut so the magnet holds it in position, then drive or tighten using a hand driver or power tool at an appropriate torque. Remove the bit from the holder when changing sizes or after use.

Usage recommendations

Use the bit with holders and tools compliant with DIN ISO 1173-F 6.3. Avoid excessive torque beyond the fastener or tool ratings to prevent damage. Store the bit dry and clean to maintain the magnet and bit geometry.