Product Description
Extra-Long Offset Double Ring Spanners – Britool Hallmark V1
Professional Long-Reach Ring Wrenches for Automotive and Aerospace Applications
The Britool Hallmark Extra-Long Offset Double Ring Spanners are professional-quality wrenches designed to provide increased leverage and improved access when working with recessed, stubborn or difficult-to-reach fasteners.
Featuring an extra-long beam design, these spanners provide additional mechanical leverage compared with conventional shorter ring spanners, making them particularly useful when loosening tight nuts and bolts.
The slim-profile offset ring ends allow improved access around surrounding components and into restricted working areas, making these tools especially suitable for automotive engine repairs, aerospace maintenance, engineering and industrial applications.
Manufactured from heat-treated chrome vanadium steel, the spanners are engineered for strength, durability and reliable performance in demanding professional environments.
Each spanner features two different metric sizes, one at each end, providing greater versatility within a single tool.
Finished in chrome with modern Marque of Skill branding and the distinctive Britool B hexagon Hallmark logo, these spanners combine professional performance with the established Britool Hallmark identity.
Important – Version 1 Design
PLEASE NOTE: These are the original Version 1 (V1) design.
They do not match the spanners supplied in the current version of the Britool Hallmark RXLFSET5 set.
Customers purchasing these spanners to replace or add to an existing RXLFSET5 set should check which version they own before ordering.
Key Features
Professional-quality extra-long double ring spanners
Available in five metric size combinations
10x11mm, 11x13mm, 14x17mm, 16x18mm and 17x19mm
Extra-long beam provides increased leverage
Ideal for loosening tight and stubborn fasteners
Slim-profile offset ring ends for improved access
Designed for confined and recessed working areas
Two different metric sizes on each spanner
Manufactured from heat-treated chrome vanadium steel
Engineered for strength exceeding applicable international specifications
Durable chrome finish
Modern Marque of Skill branding
Distinctive Britool B hexagon Hallmark logo stamped into the chrome
Suitable for automotive, aerospace, mechanical and engineering applications
Original Version 1 design – does not match current RXLFSET5 spanners
Extra-Long Beam for Increased Leverage
The extended beam design provides greater mechanical leverage than a conventional shorter ring spanner.
This allows additional turning force to be applied with less effort, making these spanners particularly useful when loosening tight or stubborn fasteners.
The extra length also provides additional reach when working on fasteners positioned deep inside engine bays, machinery and other mechanical assemblies.
Slim-Profile Offset Ring Ends
Each spanner features slim-profile offset ring ends, designed to improve access to fasteners positioned close to surrounding components or within recessed working areas.
The offset configuration allows the spanner handle to be positioned away from the fastener, helping provide additional hand clearance.
This is particularly useful when working around engine components, pipework, brackets and other obstructions where conventional straight ring spanners may be difficult to position.
Double Ring Design with Two Sizes
Each wrench features a ring end at both ends, with two different metric sizes on the same spanner.
This provides greater versatility while reducing the number of individual tools required.
The available size combinations cover a useful selection of metric fasteners commonly encountered in automotive, mechanical and engineering applications.
Heat-Treated Chrome Vanadium Steel
Manufactured from heat-treated chrome vanadium steel, these Britool Hallmark spanners are designed for strength, durability and resistance to deformation during normal professional use.
The heat-treatment process enhances the mechanical properties of the steel, helping the spanners withstand demanding workshop applications.
A durable chrome finish provides corrosion resistance and makes the tools easier to clean after regular exposure to workshop dirt, grease and oil.
Available Sizes
10x11mm – Extra-Long Offset Double Ring Spanner
11x13mm – Extra-Long Offset Double Ring Spanner
14x17mm – Extra-Long Offset Double Ring Spanner
16x18mm – Extra-Long Offset Double Ring Spanner
17x19mm – Extra-Long Offset Double Ring Spanner
Please select the required size combination when ordering.
Each size combination is a separate spanner. The available sizes are not automatically supplied together as a complete set.
Modern Marque of Skill Branding
These spanners feature the modern Britool Hallmark Marque of Skill branding, with the distinctive Britool B hexagon logo stamped into the chrome finish.
This provides clear brand identification while retaining the professional appearance associated with the Britool Hallmark range.
Technical Specifications
Brand: Britool Hallmark
Product Type: Extra-Long Offset Double Ring Spanner
Design Version: Version 1 (V1)
Measurement System: Metric
Available Sizes: 10x11mm, 11x13mm, 14x17mm, 16x18mm, 17x19mm
End Configuration: Double Ring
Ring Profile: Slim-Profile Offset
Handle Design: Extra-Long Beam
Material: Heat-Treated Chrome Vanadium Steel
Finish: Chrome
Branding: Marque of Skill / Britool B Hexagon Logo
Applications: Automotive, aerospace, mechanical, engineering and industrial maintenance
Compatibility Note: Does not match the current version of RXLFSET5
Typical Applications
Automotive engine servicing and repairs
Accessing recessed nuts and bolts
Loosening tight and stubborn fasteners
Aerospace maintenance applications
Machinery servicing and repairs
Mechanical and industrial engineering
Working around engine components and obstructions
Professional garage and workshop maintenance
Important: These are Version 1 spanners and do not match the current RXLFSET5 design. Please check compatibility before purchasing.
The HALLMARK range was developed by Britool in the 80's for the automotive aftermarket. it has been the professional’s choice ever since. Each tool is marked with the Britool hallmark 
, your guarantee of quality.
The Britool Hallmark guarantee covers against defective materials and/or workmanship when used for the purpose for which they were designed. In the unlikely event that a product fails during normal use, it will be repaired or replaced. The guarantee does not extend to fair wear & tear or moving parts such as ratchet mechanisms.