Open-end/box wrench Dedra 8 mm Cr-V model 1442

Combination wrench Dedra 8 mm Cr-V model 1442 is a compact hand tool made from chrome-vanadium (Cr-V) steel designed for tightening and loosening small metric fasteners. One end provides a 15°-angled open jaw for quick access to nuts and bolts, while the opposite ring end offers full contact around the fastener for improved torque and reduced rounding. The 8 mm size is intended for applications with small metric bolts and nuts commonly found in automotive, domestic and mechanical maintenance.

Advantages

The Cr-V steel construction ensures a balance of strength and corrosion resistance suitable for workshop and home use. The combination of open-end and boxed/ring end gives flexibility for both rapid adjustments and higher-torque operations. Its compact 8 mm profile allows access in tighter spaces where larger wrenches cannot reach, and the ring end helps distribute force evenly to reduce damage to fasteners.

Suitable for

• Automotive repairs on small components (brake lines, sensors, fittings)
• Household appliance and furniture assembly or disassembly
• Light mechanical maintenance and bicycle repairs
• Hobbyist and DIY projects requiring metric 8 mm fasteners

Key specifications

• Material: chrome-vanadium (Cr-V) steel
• Size: 8 mm
• Type: combination wrench with open-end and boxed/ring end
• Finish: corrosion-resistant chrome plating
• Design: compact profile for access in confined spaces

How to use

Select the 8 mm opening to match the nut or bolt head. Use the open-end side for quick turning or when working in confined areas where the ring end cannot be positioned. For higher torque or to minimize rounding, place the boxed/ring end fully onto the fastener and apply steady force. Maintain firm, controlled pressure and avoid sudden jerks; reposition the wrench and repeat as needed to loosen or tighten the fastener to the required specification.

Usage recommendations

Inspect the wrench before use for visible wear or deformation. Keep the tool clean and lightly lubricated to prevent corrosion. Do not use the wrench as a hammer or pry bar and avoid applying excessive force beyond the tool's size and design to prevent damage to both the wrench and fasteners.