Combination Wrench Bahco S138 Width 430 mm Weight 10.6 kg

The Bahco S138 combination wrench with a width of 430 mm and a weight of 10.6 kg is a heavy-duty hand tool intended for professional and industrial applications. Constructed to withstand high torque and repeated use, this combination wrench integrates an open-end on one side and a box end on the other to allow access in confined spaces and secure fastening of large fasteners. The design balances strength and handling for tasks where robust performance and long service life are required.

Advantages

The combination of an open jaw and a full box end provides versatility for both initial loosening/tightening and final torque application. Its heavy construction and substantial mass deliver stability when applying high torque, reducing deformation under load. The tool's size and geometry are optimized for use on large bolts and nuts, and the materials and manufacturing processes are selected to resist wear and preserve edge geometry over time.

Suitable for

• Industrial assembly and maintenance of large machinery
• Heavy vehicle repair and servicing
• Construction equipment maintenance
• Shipyard and offshore fastening tasks

Key specifications

• Overall width: 430 mm
• Weight: 10.6 kg
• Combination head: open-end and box-end configuration
• Designed for heavy-duty torque applications and large fasteners
• Durable construction suitable for repeated industrial use

How to use

Select the appropriate orientation of the wrench so the open-end or box-end matches the fastener profile. Use the open-end for quick engagement and initial loosening or tightening where clearance is available; switch to the box end for a secure fit when applying final torque. Ensure the workpiece and fastener are clean and free of debris before use. Apply steady, controlled force; avoid sudden impacts that could overstress the tool or the fastener. Store the wrench in a dry environment to minimize corrosion and inspect periodically for wear or deformation before continued use.

Usage recommendations

For safe and effective operation, use the Bahco S138 combination wrench only on fasteners that match the tool's size and profile. Wear appropriate personal protective equipment when working with heavy machinery. Do not use the wrench as a hammer or pry bar, and avoid applying force with extension bars or cheater pipes that could exceed the tool's designed load capacity.