Kärjet Wera 851/4 Z

Wera 851/4 Z is a high-quality Phillips (PH 1) screwdriver bit with a 1/4" hexagonal shank and an overall length of 89 mm. Manufactured for durability and precision, this bit fits standard 1/4" holders and is designed for universal fastening tasks where a reliable Phillips tip is required.

Advantages

The bit features a tough, viscous material composition that increases wear resistance and provides secure torque transfer. Its 1/4" hex shank complies with DIN ISO 1173-F 6.3 for compatibility with common bit holders and screwdrivers. The precisely machined Phillips tip ensures consistent engagement with PH 1 screws, reducing cam-out and slippage.

Suitable for

• Fastening and loosening PH 1 Phillips screws
• Use with 1/4" bit holders, quick-change chucks and manual screwdrivers
• General assembly, maintenance and repair tasks in woodworking, electronics, and furniture

Key specifications

• Type: Phillips bit (PH 1)
• Length: 89 mm
• Shank: 1/4" hexagon (DIN ISO 1173-F 6.3)
• Brand: Wera
• MPN: 05059760001
• EAN: 2050000314278

How to use

Insert the 1/4" hex shank into a compatible bit holder or screwdriver chuck until it locks in place. Select the correct PH 1 screw and apply steady axial pressure while turning to engage the screw head. For power tools, use appropriate speed and torque settings to avoid damaging the screw or bit.

Recommendations

For prolonged service life, avoid excessive side loads and remove burrs from screw heads before use. Store the bit in a dry place and replace it if the tip shows visible wear or rounding.