Hand tool wrench JCB 23 mm flat-ring combination spanner

Combination spanner by JCB in 23 mm size combines a flat open-end and a ring (box) end in a single hand tool. It is designed to engage hex fasteners of the specified size and provide both open grip access and closed, full-contact torque at the ring end. The tool is intended for mechanical, automotive and maintenance applications where a compact, two-function wrench reduces the number of tools required in a set.

Advantages

The JCB 23 mm flat-ring combination spanner is made for repeated workshop use with a geometry that balances access and torque. The open end allows quick placement on fasteners in tight or awkward positions, while the ring end delivers more secure engagement for higher torque and reduced risk of rounding. Its compact form and single-size convenience simplify selection and storage in toolboxes and on service belts.

Suitable for

• Tightening and loosening 23 mm hex nuts and bolts
• Automotive repair and maintenance tasks
• General mechanical assembly and disassembly
• Workshop and field service tasks requiring a portable wrench

Key specifications

• Type: combination spanner with open-end and ring (box) end
• Size: 23 mm nominal hex engagement
• Material characteristics: durable chrome-plated or treated steel construction for wear and corrosion resistance
• Ends: one flat open end for quick access, one ring end for full-sided contact and higher torque
• Finish: smooth, service-oriented finish for ease of cleaning and handling

How to use

Select the 23 mm JCB combination spanner and position the open or ring end onto the hex fastener that matches the tool size. For quick adjustments or where access is limited, use the flat open end; ensure proper seating before applying force. For higher torque or to minimise rounding, place the ring end fully over the fastener and apply steady force. Maintain a straight-line pull or push to avoid slipping, and use appropriate body positioning to control torque safely.

Usage recommendations

Inspect the spanner before use for cracks, burrs or deformations and avoid using on fasteners that do not fully match the 23 mm size. Store in dry conditions to limit corrosion. For high-torque or impact applications, use a tool specifically rated for such use rather than a standard hand spanner.