Wrench (open-box) King Tony 42 mm model 1071-42

King Tony 42 mm open-end/box wrench model 1071-42 is a manual hand tool intended for tightening and loosening hexagonal nuts and bolts with a 42 mm jaw. The tool combines an open-end profile at one side and a boxed ring at the other, providing access in confined spaces and a secure contact on fasteners for torque application. It is intended for mechanical, automotive and general maintenance work where a reliable 42 mm spanner is required.

Advantages

The wrench offers two working styles in a single tool—an open-end for rapid engagement and a boxed end for improved grip and reduced slippage under load. Constructed from hardened alloy steel, it provides durability and resistance against wear in routine workshop conditions. The 42 mm size ensures compatibility with standard metric fasteners of the same nominal size, and the design balances reach and accessibility for common repair and assembly tasks.

Suitable for

• Automotive repairs involving 42 mm nuts and bolts
• Mechanical assembly and disassembly of machinery with 42 mm fasteners
• Routine maintenance and service work in workshops
• Situations requiring alternating open-end access and boxed-end torque

Key specifications

• Working size: 42 mm
• Type: combination open-end and boxed-ring wrench
• Material: hardened alloy steel (heat-treated for strength)
• Finish: corrosion-resistant surface treatment
• Drive profile: 6- or 12-point ring (manufacturer design for secure engagement)
• Hand use: designed for manual operation, not for powered impact use

How to use

Select the 42 mm end that best fits the fastener; use the open-end for quick placement and the boxed end when a secure, torque-transmitting engagement is required. Position the wrench squarely on the fastener to reduce rounding of edges and apply steady, controlled force. When working in tight spaces, orient the thin open jaw to access recessed nuts, and use incremental turns with the boxed end to avoid interference with surrounding parts.

Usage recommendations

Inspect the wrench before use for visible wear or deformation. Use appropriate hand force and avoid using extensions or cheater bars that may exceed the tool’s intended load. For best results, keep the wrench clean and store it in a dry place to preserve the corrosion-resistant finish.