Open-end/box wrench 23 mm NEO tools 09-723

The NEO tools 09-723 is a 23 mm combination wrench featuring an open-end and a box (ring) end designed for fastening and loosening hex nuts and bolts of matching size. Its combination of an open jaw and a closed ring provides versatility for tasks that require quick positioning with the open end and higher torque or safer engagement with the box end. Intended for use in automotive repair, general maintenance, and assembly work, the tool is shaped to access fasteners in tighter spaces and give a reliable fit to reduce rounding of heads.

Advantages

The 23 mm combination wrench offers a precise fit to 6- or 12-point hex fasteners, allowing efficient transfer of torque while minimizing slippage. The dual-end design reduces the need to switch tools: the open end allows rapid placement on the fastener, while the box end provides secure grip for higher torque operations. The wrench is suitable for confined spaces where accessibility is limited and for repeated use in workshop and field environments.

Suitable for

• Automotive repairs and brake, suspension, or engine maintenance
• Assembly and disassembly of machinery and equipment with 23 mm fasteners
• General maintenance, installation, and service tasks
• Field service and mobile toolkits where compact, versatile tools are required

Key specifications

• Wrench type: combination (open-end and box/ring end)
• Nominal size: 23 mm
• Ends: one open jaw and one closed ring for hex fasteners
• Intended use: manual tightening and loosening of nuts and bolts
• Typical application areas: automotive, maintenance, assembly

How to use

Select the 23 mm end that matches the fastener and position the tool squarely on the nut or bolt head. Use the open end for quick placement and for working on fasteners with limited clearance where the ring end cannot fit. Use the box end to apply greater torque or to avoid rounding the fastener head, ensuring the ring fully engages the flats of the fastener before applying force. Apply steady manual force and avoid sudden impacts; if additional leverage is required, use appropriate extension methods recommended for hand tools.

Usage recommendations

Inspect the wrench for wear or deformation before use and keep contact surfaces clean to maintain a secure fit. Use correct personal protective equipment and avoid using the wrench with cheater pipes or as a hammer. Store the tool in a dry place to limit corrosion and periodically check for rounding or damage to the ends.