Open End Wrench Bahco 1931Z/12T Weight 480 g

The BAHCO open end wrench model 1931Z/12T is a hand tool designed for turning nuts and bolts with a consistent, secure grip. Weighing 480 g, the wrench is engineered for everyday workshop use and household repair tasks. Its open end profile allows quick placement on fasteners and access in confined spaces, while the overall geometry supports leverage and controlled torque application.

Advantages

This open end wrench combines durable construction with precise jaw alignment to reduce slippage and wear during repeated use. The tool's balanced weight and shape improve handling and allow steady application of force. Its open-ended design enables rapid repositioning on fasteners without removing the tool fully, increasing work speed on recurring tightening or loosening operations.

Suitable for

• Automotive maintenance and light mechanical repairs
• Plumbing tasks that require access to exposed fasteners
• Assembly and disassembly of machinery and equipment
• General household and DIY fastening jobs

Key specifications

• Tool type: open end wrench
• Weight: 480 g
• Material: high-strength alloy steel (heat-treated for durability)
• Finish: corrosion-resistant surface treatment
• Jaw configuration: fixed open ends for quick placement
• Ergonomics: balanced profile for controlled torque application

How to use

Select the correct size of the open end wrench to match the nut or bolt head. Position the wrench so the flat faces of the jaws contact the fastener surfaces fully, then apply steady force in the required direction to tighten or loosen. For best results, use short controlled strokes and reposition the wrench as needed rather than forcing a single long motion. Inspect the wrench and the fastener seating regularly to avoid rounding or damage.

Recommendations

Use the wrench within its intended size range, avoid applying excessive impact or using it as a hammer, and store it in a dry place to preserve the corrosion-resistant finish. For high-torque tasks, consider using a tool designed for added leverage or torque measurement to prevent fastener or tool damage.