Combination wrench AWTools AW39775 — hand tool, open-end and box-end spanner

AWTools AW39775 is a combination wrench with an open-end on one side and a box (ring) end on the other, designed for general mechanical and maintenance tasks. Manufactured from chrome-vanadium (CrV) tool steel, the wrench is drop forged, hardened and tempered to provide strength and resistance to wear. A satin finish reduces slippage and the ring end is set at a 15° angle to improve accessibility on flat surfaces. Clear size markings allow quick identification in a toolbox or on the job.

Advantages

The dual-end design combines an open-ended spanner for quick engagement with a ring end for secure torque transfer, reducing the need to change tools during work. The CrV construction and heat treatment ensure durability and consistent mechanical properties, while the satin finish improves grip and reduces glare. The 15° offset ring end facilitates work in confined or shallow areas and the clear size markings speed up tool selection.

Suitable for

• Automotive maintenance and repair
• General mechanical assembly and disassembly
• Workshop and garage tasks
• On-site repair and installation work
• Amateur DIY and professional tradespeople

Key specifications

• Material: Chrome-vanadium (CrV) tool steel
• Manufacturing: Drop forged, hardened and tempered
• Finish: Satin finish to reduce slippage
• Ends: Open-end on one side, box (ring) end on the other
• Ring end angle: 15° offset for improved accessibility
• Standards: Complies with DIN 3113
• Markings: Clear size markings for quick identification

How to use

Select the correct size of the AWTools AW39775 combination wrench for the nut or bolt to be tightened or loosened. Use the open end for initial turning in tight spaces or where quick repositioning is needed; switch to the ring end for final tightening or when higher torque and secure grip are required. Position the ring end fully over the fastener and apply steady force in the intended direction of rotation. Avoid using excessive impact or extending the handle with cheater bars, as this may exceed the tool’s design limits.

Usage recommendations

For safe and long-lasting use, keep the wrench clean and free of oils or debris that could reduce grip. Inspect the tool periodically for wear or deformation, and replace if the ring or open jaw shows rounding or cracks. Use the wrench sizes that match fasteners to minimize slippage and follow DIN 3113 handling guidelines when working on mechanical assemblies.