Britool England 3/8 Drive Deep 12 Point Bi-Hex Socket Range 9-19mm UK Made
MDBM9A
Couldn't load pickup availability
The Britool England 3/8" Drive Deep Bi-Hexagon Socket Range comprises professional-quality metric hand sockets manufactured from high-grade alloy steel at the original Britool UK manufacturing plant before its closure.
Available in a selection of metric sizes from 9mm through to 19mm, these deep sockets combine the additional reach of a deep socket with a 12-point / bi-hexagon Stress Relief Drive profile, making them particularly useful for automotive, mechanical, engineering and classic vehicle applications.
Each socket incorporates a ball-retaining groove on each face of the 3/8" square drive, providing positive engagement with compatible 3/8" drive ratchets, extension bars and other hand-tool accessories.
These are hand sockets only and are not designed or intended for use with pneumatic, electric or cordless impact tools.
Manufactured in England before the closure of the original Britool UK plant, these sockets represent increasingly scarce examples of original UK-manufactured Britool professional hand tools.
Please note that this listing is for one individual socket in your selected size, not the complete range.
Key Features
- Genuine Britool England professional socket
- Original UK-manufactured Britool tool
- Made at the original Britool UK plant before its closure
- Professional 3/8" square drive
- Deep socket design
- Metric sizes available from 9mm to 19mm
- 12-point / bi-hexagon profile
- Britool Stress Relief Drive design
- Manufactured from high-grade alloy steel
- Ball-retaining groove on each face of the square drive
- Positive engagement with compatible 3/8" drive hand-tool accessories
- Socket lengths approximately 55mm to 65mm, depending on size
- Suitable for professional automotive and mechanical applications
- Useful for classic vehicle and restoration tool collections
- Increasingly scarce original UK-made Britool tools
- For hand-tool use only
- Not suitable for impact or pneumatic power tools
- Listing is for one individual socket in the selected size
Metric Sizes Available
This Britool England deep socket range is available in a selection of metric sizes between:
9mm and 19mm
Please select the required socket size from the available options when ordering.
This listing is for one individual Britool England deep socket in your chosen size. You will not receive the complete 9-19mm range unless specifically stated otherwise in the purchasing options.
3/8" Square Drive
Each socket features a professional 3/8" square drive, making it suitable for use with compatible 3/8" drive hand tools including:
- Ratchets
- Extension bars
- Breaker bars
- Sliding T-handles
- Universal joints
- Other compatible 3/8" square drive hand-tool accessories
A ball-retaining groove is incorporated into each face of the square drive, helping provide positive retention when connected to compatible accessories.
Deep Socket Design
The deep-profile construction provides additional reach compared with a conventional shallow socket.
This makes deep sockets particularly useful when working with fasteners positioned on longer threaded studs or where additional socket depth is required to reach a recessed nut or bolt.
Depending on the individual socket size, the overall length is approximately 55mm to 65mm.
The precise length and external design may vary slightly between sizes within this original Britool range.
12-Point / Bi-Hexagon Profile
Each socket features a 12-point bi-hexagon profile, providing multiple engagement positions around a compatible fastener.
The additional engagement positions can make alignment easier when working in confined areas where the available movement of the ratchet or other hand tool is restricted.
The 12-point design is also commonly described as a bi-hex, bi-hexagon or double-hex socket, making these original Britool sockets suitable for users searching under any of these common workshop terms.
Britool Stress Relief Drive
The sockets incorporate Britool's Stress Relief Drive design, developed to provide effective torque transfer while helping minimise unnecessary stress and damage to compatible fasteners.
Correct socket sizing remains essential. Always select the socket that properly matches the fastener and ensure it is fully engaged before applying turning force.
Original Britool UK Manufacture
These sockets were manufactured at the original Britool UK plant before its closure.
As original UK-manufactured Britool England tools are no longer being produced at that factory, remaining examples are becoming increasingly scarce.
This makes the range particularly interesting for professional users who continue to use traditional Britool tools, as well as enthusiasts building or maintaining classic Britool England tool collections.
They can also be a useful choice for classic car, motorcycle and vehicle restoration workshops where traditional British professional hand tools complement the period and application.
Professional Automotive & Workshop Applications
The combination of a deep profile, 3/8" square drive and 12-point bi-hexagon design makes these sockets suitable for a variety of hand-tool applications including:
- Automotive servicing and repairs
- Engine and drivetrain work
- Vehicle mechanical maintenance
- Classic car servicing
- Classic motorcycle maintenance
- Vehicle restoration
- Mechanical engineering
- Machinery maintenance
- Professional garages
- Engineering workshops
- General workshop repairs
Hand Socket – Not for Impact Tools
These Britool England sockets are designed specifically for manual hand-tool use.
They must not be used with:
- Pneumatic impact wrenches
- Cordless impact wrenches
- Electric impact wrenches
- Powered impact drivers
- Other impact or percussion tools
For powered impact applications, always use a socket specifically manufactured and rated for impact-tool use.
Increasingly Scarce Britool England Tools
Original Britool England tools manufactured in the UK have a long-established place in British automotive and engineering workshops.
With production at the original Britool UK plant having ceased, these original UK-manufactured sockets are becoming increasingly difficult to source as remaining stocks are sold.
Availability may therefore vary according to individual socket size.
The Britool Hallmark Range
The Britool Hallmark range was developed by Britool in the 1980s for the automotive aftermarket and has been a long-established choice for professional workshop users.
Each socket is marked with the Britool Hallmark branding,
providing clear identification and reflecting the professional tooling heritage of the range.
The Britool Hallmark guarantee covers defects in materials and/or workmanship when tools are used for their intended purpose.
The guarantee does not cover fair wear and tear, moving parts such as ratchet mechanisms, or consumable items such as bits and repair kits.
Important Information
- Brand: Britool England
- Product type: Deep Metric Socket
- Drive size: 3/8" square drive
- Profile: 12-Point / Bi-Hexagon
- Drive design: Stress Relief Drive
- Material: High-grade alloy steel
- Metric sizes available between 9mm and 19mm
- Approximate socket lengths: 55mm to 65mm, depending on size
- Ball-retaining groove on each face of the square drive
- Manufactured at the original Britool UK plant before its closure
- Original UK-made Britool England socket
- Increasingly scarce original Britool tooling
- Hand-tool use only
- Not suitable for pneumatic, electric or cordless impact tools
- Design and overall length may vary slightly between individual sizes
- This listing is for one socket in the selected size, not the complete range
- The product photograph is generic and used for illustration purposes
- The photograph may show a different socket size or slight design variation
- You will receive the socket size selected when ordering
