Britool Hallmark

Britool Hallmark 3/8" Oil Drain Sump Plug Key Range Automotive Service Tools

  • 3/8" drive chrome T45 Torx profile oil drain plug key from Britool Hallmark MODS19 set
  • 3/8" drive chrome 10mm Female square profile oil drain plug key from Britool Hallmark MODS19 set
  • 3/8" drive chrome 10mm triangle profile oil drain plug key from Britool Hallmark MODS19 set
  • 3/8" drive chrome 10mm Male square profile oil drain plug key from Britool Hallmark MODS19 set
  • 3/8" drive chrome 12mm hexagon profile oil drain plug key from Britool Hallmark MODS19 set
  • Circular icon with '3/8" Drive' text on a black background
  • Square, Hexagon, Triangular and Torx Star symbols
  • A set of 19 oil drain plug keys from Britool Hallmark. Organized in a tool control foam tray, including various sizes and shapes such as square, hexagonal, and triangular.
  • Britool Hallmark offical "B" Marque of Skill logo.
  • Britool Hallmark Official brand logo

ODKH8

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£8.99
£8.99
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The Britool Hallmark 3/8" Drive Oil Drain Plug Key Range provides a comprehensive selection of commonly used sump plug, oil drain plug and service keys for automotive maintenance and vehicle servicing.

Designed for professional mechanics, automotive technicians, garages and experienced DIY users, the range covers a variety of square, hex, triangle and Torx-Star profiles, helping provide the correct tool for many different oil drain plug designs.

A 3/8" square drive 165mm sliding T-bar is also available, providing additional leverage and controlled operation when removing stubborn sump plugs or tightening drain plugs during routine servicing.

Each tool is marked with the Britool Hallmark "B" logo along with its individual part reference for easy identification and professional tool control.

Individual keys can be purchased separately, allowing you to select the specific size required for your vehicle or workshop application.

A complete 19-piece set is also available — MODS19 — for users who require the full range in one organised kit.

Key Features
  • Genuine Britool Hallmark automotive tooling
  • 3/8" drive oil drain and sump plug key range
  • Covers multiple common drain plug profiles
  • Square, hex, triangle and Torx-Star options
  • Suitable for automotive servicing and maintenance
  • 165mm 3/8" sliding T-bar available
  • Individual tools available separately
  • Britool Hallmark "B" logo marked on tools
  • Individual part references for easy identification
  • Complete 19-piece set available — MODS19
Range Available
Square Male Sump Plug Keys
  • 7mm
  • 8mm
  • 10mm
  • 11mm
  • 12mm
  • 13mm
  • 14mm
  • 5/16"
  • 3/8"
Square Female Sump Plug Key
  • 10mm
Hex Sump Plug Keys
  • 8mm
  • 9mm
  • 10mm
  • 12mm
  • 14mm
  • 17mm
Triangle Sump Plug Key
  • 10mm — commonly used on PSA applications
Torx-Star Sump Plug Key
  • T45 — suitable for Vauxhall / Opel applications
Sliding T-Bar
  • 3/8" Square Drive
  • 165mm Length
Automotive Applications

These oil drain plug keys are designed for a wide range of automotive servicing applications, including:

  • Engine oil changes
  • Sump plug removal
  • Oil drain plug replacement
  • Routine vehicle servicing
  • Garage maintenance
  • Automotive repairs
  • Workshop servicing
  • DIY vehicle maintenance
  • Mechanical maintenance

The selection of profiles makes the range particularly useful for workshops servicing multiple vehicle makes and models.

Individual Keys or Complete Set

Individual sizes are available, allowing you to purchase the specific sump plug tool required without buying a complete set.

For workshops wanting comprehensive coverage, the full 19-piece Britool Hallmark oil drain plug key set — MODS19 is also available.

This provides the complete selection of square, hex, triangle and Torx-Star keys together with the sliding T-bar.

Important Information
  • Individual tools are sold separately unless specifically purchased as the MODS19 complete set.
  • Product images may be generic or show a different size for illustration purposes.
  • You will receive the size and profile selected when ordering.
  • Vehicle compatibility can vary, so please check your vehicle manufacturer's specification before purchasing.
  • Always use the correct size and profile for the sump plug to minimise the risk of fastener damage.
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 tool carries the Britool Hallmark  ,providing clear identification of the range and its professional tooling heritage.

The Hallmark guarantee covers defects in materials and/or workmanship when tools are used for their intended purpose and for the expected life of the tool.

The guarantee does not cover fair wear and tear, moving parts such as ratchet mechanisms, or consumable items such as bits and repair kits.
Britool Hallmark 3/8" Oil Drain Sump Plug Key Range Automotive Service Tools

£8.99

Frequently Asked Questions

Why Use an Oil Drain Plug Key Set?
Oil drain plugs can use a variety of specialist profiles and sizes, meaning a conventional socket set may not always provide the correct tool for the job.

The Britool Hallmark 19-piece drain plug key set brings a wide selection of commonly used profiles together in one organised kit. The inclusion of the 3/8" sliding T-bar also provides useful additional leverage when dealing with tight or stubborn drain plugs.

The combination of square, hex, triangle and Torx profiles makes this a practical addition to any professional automotive servicing toolkit.
What sizes and types of sump plug keys are included?
The set contains 19 pieces, including 7mm–14mm and imperial male square keys, a 10mm female square, 8mm–17mm hex keys, a 10mm triangle key and a T45 Torx key. A 3/8" square drive sliding T-bar is also included. This comprehensive selection provides coverage for many commonly encountered automotive oil drain and gearbox plug designs.
Is a 3/8" sliding T-bar available for these oil drain plug keys?
Yes. A 3/8" square drive 165mm sliding T-bar is available for use with the compatible Britool Hallmark drain plug keys. The longer handle provides additional leverage and controlled operation when removing tight or stubborn sump plugs and oil drain plugs during automotive servicing.
Which sump plug key do I need for my vehicle?
The correct sump plug key size and profile depends on the vehicle and the design of its drain plug. The Britool Hallmark range includes 7mm–14mm and 5/16"–3/8" square keys, 8mm–17mm hex keys, a 10mm triangle key and a T45 Torx-Star key. Always check your vehicle manufacturer's specification or the existing sump plug before ordering.
Are the Britool Hallmark drain plug keys available individually?
Yes. The Britool Hallmark 3/8" drive oil drain plug key range allows individual sizes and profiles to be purchased separately. This is useful if you only require one specific sump plug tool for a particular vehicle or need to replace a missing key. The complete 19-piece MODS19 set is also available for workshops requiring comprehensive coverage.
Are Britool Hallmark sump plug keys suitable for professional garages and mechanics?
Yes. These 3/8" drive oil drain plug keys are designed for automotive servicing and are suitable for professional mechanics, garages, vehicle technicians, workshops and experienced DIY users. The wide range of profiles makes them particularly useful for workshops servicing multiple vehicle makes and models, including applications using specialist square, triangle and Torx-style drain plugs.