8-Piece Double-Ended Ring Spanner Set – Chrome Vanadium Steel, 6×7 to 20×22 mm

TÜV-certified, DIN-compliant double ring spanner set engineered for professional workshops and serious DIY applications in the UAE. Eight double-ended spanners covering the most-used metric sizes from 6 mm to 22 mm in a single kit.

Product overview

The Oxford Tools 8-Piece Ring Spanner Set is a professional-grade spanner set built for automotive, mechanical, and industrial fastening tasks. Each spanner in this set is double-ended, giving you two sizes per tool and reducing the number of tool changes on the job. The ring end design fully encircles the nut or bolt head, delivering torque across all six contact points rather than just two, this is the fundamental advantage of a ring spanner over an open-ended spanner, and it is why ring spanners are the preferred choice whenever precision torque application or risk of rounding is a concern.

Made from chrome vanadium steel and finished with an elliptical full polish, every piece in this set meets DIN specifications and carries TÜV product service certification. The offset (cranked) geometry of each spanner provides the knuckle clearance needed in tight engine bays, confined bolt patterns, and recessed fastener positions, solving the access problem that flat spanners cannot.

Size Range

This 8-piece set covers consecutive metric sizes across the most common fastener range in automotive and general mechanical work:

• 6 × 7 mm
• 8 × 9 mm
• 10 × 11 mm
• 12 × 13 mm
• 14 × 15 mm
• 16 × 17 mm
• 18 × 19 mm
• 20 × 22 mm

All sizes are metric (mm). For inch sizes, see our combination spanner sets.

Technical specifications

Spanner Type

Double-ended ring (box end)

Material

Chrome vanadium steel

Finish

Elliptical full polish, chrome-plated

Offset Angle

Cranked (deep offset) for knuckle clearance

Drive Profile

12-point (bi-hex) ring ends

Standard

DIN 838 / ISO 10104 compliant

Certification

TÜV Product Service

Pieces in Set

8 spanners

Size Range

6 mm – 22 mm metric

Storage

Fabric roll-up pouch included

Brand Origin

Oxford Tools, UK

Warranty

Lifetime warranty

Key features

Chrome vanadium steel construction: Heat-treated and hardened to resist deformation under high-torque loads. The alloy provides superior strength-to-weight ratio compared to standard carbon steel spanners.

Double-ended design: Each spanner carries two metric sizes, so eight pieces cover sixteen sizes. This maximises coverage while minimising weight in a tool roll or kit bag.

Cranked (offset) geometry: The bent shank lifts your hand above the work surface, providing the knuckle clearance essential for recessed bolts, countersunk fasteners, and confined engine components.

12-point bi-hex ring profile: The ring end engages at 30° increments, enabling use in tight swing arcs where a 6-point spanner cannot complete a full turn.

Elliptical full polish chrome finish: corrosion-resistant and easy to clean, critical for tools used in the UAE’s high-humidity coastal environment and dusty workshop conditions.

DIN 838 / ISO 10104 compliance: dimensional accuracy certified to international standards, ensuring correct fit on metric fasteners without play or rounding risk.

TÜV certified: independently tested for structural integrity, a certification standard recognised across professional workshops in the GCC and EU markets.

Lifetime warranty: Oxford Tools backs every set with a lifetime guarantee against manufacturing defects.

What is A Ring Spanner And When Should You Use One?

A ring spanner (also called a box-end wrench) has a closed, circular ring on one or both ends that fully surrounds the nut or bolt head. Unlike an open-ended spanner that contacts only two sides of a fastener, the ring end contacts all six sides (on a standard hex bolt) or all twelve points (on a bi-hex profile). This full-contact grip is why ring spanners are preferred for:

High-Torque Applications

When tightening or breaking loose a stubborn fastener, full contact distributes force evenly and dramatically reduces the chance of rounding the bolt head.

Confined Spaces

The cranked, offset design of this set allows the handle to clear the work surface, enabling use in engine bays, underneath vehicles, and inside cabinet panels where a flat open spanner cannot swing freely.

Professional Fastener Care

In automotive and precision engineering, a rounded bolt head creates serious downtime and repair cost. Ring spanners eliminate this risk by maintaining grip through the full arc of rotation.

Ring Spanner Vs. Combination Spanner Vs. Open-Ended Spanner

Many tool buyers use the terms interchangeably, but the differences matter for choosing the right spanner set for the job. A ring spanner has ring ends on both sides, maximum grip, safest for high-torque work. A combination spanner has a ring on one end and an open jaw on the other, versatile for tasks needing both quick placement (open end) and final torquing (ring end). An open-ended spanner has open jaws on both ends, fast access but lower grip security. For any fastener where overtightening or corrosion means the bolt is hard to break loose, a double ring spanner set like this Oxford 8-piece is the safest, most controlled tool choice.

Common applications in the UAE

Automotive Repair

Engine rebuilds, brake caliper bolts, suspension components, exhaust manifold studs.

Workshop & Garage

General fastening, machine maintenance, bolt-pattern work requiring controlled torque.

Industrial & HVAC

Pipe flange bolts, compressor fittings, duct assembly — common in UAE construction sites.

Home Maintenance

Furniture assembly, plumbing fixtures, appliance installation, general DIY around the home.

What’s in the box

• 8 × double-ended ring spanners (6×7, 8×9, 10×11, 12×13, 14×15, 16×17, 18×19, 20×22 mm)
• 1 × fabric roll-up storage pouch with individual pockets for each spanner

Frequently Asked Questions

What is the difference between a flat ring spanner and a cranked (offset) ring spanner?

A flat ring spanner lies parallel to the work surface, which is ideal when headroom above the bolt is plentiful. A cranked or offset ring spanner has a bent shank that raises the handle above the work surface, creating knuckle clearance for recessed or flanked fasteners. This Oxford set uses a cranked geometry, making it more versatile for engine bay and confined space work.

Is this ring spanner set suitable for use on both metric and imperial bolts?

This set is metric only, sized 6 mm through 22 mm. Imperial (SAE/inch) bolts require a separate set. Most automotive, industrial, and construction fasteners used in the UAE and GCC region follow metric standards, so this set covers the vast majority of everyday applications.

Why choose chrome vanadium steel over standard carbon steel for a spanner set?

Chrome vanadium (Cr-V) is an alloy steel with higher tensile strength, greater toughness, and significantly better resistance to corrosion than plain carbon steel. In the UAE’s coastal and high-temperature environment, tools corrode faster than in temperate climates. Cr-V spanners hold their surface finish longer, do not rust as quickly, and handle the thermal cycling between cool air-conditioned workshops and hot outdoor job sites without brittleness.

What does the ring spanner price include and does Gas Dubai offer delivery across the UAE?

The price covers all 8 spanners and the storage pouch. Gas Dubai ships across the UAE including Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah, Fujairah, and Umm Al Quwain. Same-day or next-day dispatch is available for in-stock items.

Can this spanner set handle ratchet ring spanner work?

This is a standard (non-ratcheting) ring spanner set. The ring ends must be lifted and re-seated for each partial turn in very tight arcs. If continuous ratcheting action in a confined space is a priority, Gas Dubai also stocks ratchet ring spanner sets separately.

How does this compare to a slogging ring spanner?

A slogging ring spanner (striking ring spanner) has a flat striking face on the handle that can be hit with a hammer or mallet to break extremely seized fasteners — they are heavy-duty tools used in pipeline, flange, and marine applications. This Oxford set is a standard workshop ring spanner set designed for hand-torque applications without impact forces.