Screwdriver bit Wera 842/4

The Wera 842/4 screwdriver bit is a tough, viscous hex bit designed for hexagon socket screws and universal use. It has a 5 mm 1/4" hex tip and an overall length of 89 mm, compatible with holders according to DIN ISO 1173-F 6.3. The ballpoint drive profile allows the tool axis to be swiveled away from the screwdriving axis for angled or "round the corner" screwdriving.

Advantages

The bit is manufactured for durability and reliable torque transfer, offering strong grip in hexagon socket screws and compatibility with standard 1/4" holders. The ballpoint profile increases accessibility when working at an angle, while the 89 mm length provides reach in recessed or tight spaces.

Suitable for

• Hexagon socket screws (5 mm)
• Use with 1/4" bit holders and screwdrivers
• Assembly, maintenance and repair tasks requiring reach or angled access

Key specifications

• Brand: Wera
• Model: 842/4
• Manufacturer part number (MPN): 05059682001
• EAN: 4013288155955
• Tip type: 5 mm hex (1/4" hexagon)
• Drive profile: ballpoint hex
• Length: 89 mm
• Holder compatibility: DIN ISO 1173-F 6.3 (1/4" holders)

How to use

Insert the 1/4" hex shank into a compatible bit holder or screwdriver. Place the 5 mm hex tip into the hexagon socket of the screw, then apply steady axial pressure while turning the driver. For angled screwdriving, engage the ballpoint drive and align the tool axis as needed to access the screw from an offset angle.

Usage recommendations

Use the bit with appropriately rated holders and avoid excessive torque beyond the screw or tool specifications to prevent tip deformation. Store the bit in a dry place to maintain condition and ensure accurate fit and long service life.