Britool Hallmark

Britool Hallmark 3/8" 19pc Oil Drain Sump Plug Key Set Automotive Tool Kit

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PROM2117


Regular price £45.00
Sale price £45.00 Regular price £62.58
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The Britool Hallmark 19-Piece Oil Drain Plug Key Set is a comprehensive professional automotive tool kit designed for removing and installing a wide range of engine oil sump plugs, drain plugs and gearbox plugs found across many vehicle manufacturers.

Built around a 3/8" square drive system, this versatile set combines male and female square, hex, triangle and Torx-style keys, providing excellent coverage for common drain plug designs encountered during vehicle servicing and maintenance.

A 3/8" square drive sliding T-bar is also included, providing additional leverage and controlled torque when loosening stubborn sump plugs or tightening drain plugs during servicing.

The set is supplied in a compact tool control EVA foam tray, keeping all 19 pieces organised and allowing quick identification of missing tools in a professional toolbox or workshop drawer.

Set Contents

Male Square Keys:

  • 7mm
  • 8mm
  • 10mm
  • 11mm
  • 12mm
  • 13mm
  • 14mm
  • 5/16"
  • 3/8"

Female Square:

  • 10mm

Hex Keys:

  • 8mm
  • 9mm
  • 10mm
  • 12mm
  • 14mm
  • 17mm

Specialist Keys:

  • 10mm Triangle — commonly used on PSA vehicles
  • T45 Torx / Star — suitable for Vauxhall / Opel applications

Drive Accessory:

  • 3/8" Square Drive Sliding T-Bar

Total: 19 Pieces

Professional Automotive Applications

This Britool Hallmark sump plug key set is ideal for:

  • Engine oil changes
  • Sump plug removal
  • Oil drain plug replacement
  • Vehicle servicing
  • Gearbox and transmission maintenance
  • Automotive workshop repairs
  • Garage servicing
  • Professional mechanic use
  • DIY vehicle maintenance

The wide selection of profiles makes the set particularly useful for mechanics who work on a variety of vehicle makes and models.

Compact Tool Control Storage

The complete 19-piece set is supplied in a tool control EVA foam tray measuring approximately 197 × 190 × 35mm.

The compact format makes it ideal for:

  • Toolbox drawers
  • Roll cabs
  • Mobile mechanic tool kits
  • Garage workshops
  • Automotive service centres

The organised foam layout also makes it easy to see which sump plug keys are present and quickly identify a missing tool.

Please Note
  • 19-piece 3/8" drive oil drain / sump plug key set
  • Includes square, hex, triangle and Torx profiles
  • Includes 3/8" sliding T-bar
  • Supplied in EVA tool control foam
  • Individuals from this set are available to purchase separately when required
  • Always confirm the required sump plug size and profile before ordering
  • Individual vehicle compatibility can vary, so please check the manufacturer's specification for your vehicle.
  • Product images may be used for illustration purposes; please refer to the contents listed above for the exact tools supplied.
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" 19pc Oil Drain Sump Plug Key Set Automotive Tool Kit

£45.00

Frequently Asked Questions

What is the Britool Hallmark 19-Piece Oil Drain Plug Key Set used for?
The Britool Hallmark 19-Piece Oil Drain Plug Key Set is designed for removing and installing engine sump plugs, oil drain plugs and gearbox drain plugs on cars, vans and other vehicles. The set includes a wide range of 3/8" drive square, hex, triangle and Torx keys, making it suitable for professional automotive servicing, garages, workshops and DIY vehicle maintenance in the UK.
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 this sump plug key set suitable for professional mechanics and garages?
Yes. The Britool Hallmark 19-piece sump plug key set is designed for professional automotive servicing and is suitable for mechanics, garages, vehicle technicians, mobile mechanics and workshop users. The range of different drain plug profiles makes it particularly useful when servicing multiple vehicle makes and models.
What drive size does the Britool Hallmark sump plug key set use?
All the keys in this Britool Hallmark oil drain plug tool set use a 3/8" square drive system. The set also includes a 3/8" square drive sliding T-bar, providing additional leverage for removing tight or stubborn sump plugs during vehicle servicing.
Does the Britool Hallmark sump plug key set come with storage?
Yes. The complete 19-piece oil drain plug and sump plug key set is supplied in a Tool Control EVA foam tray, approximately 197 × 190 × 35mm. The organised tray makes it easy to identify each key, maintain tool control and store the set neatly in a toolbox, roll cab or mobile mechanic's tool kit.
Are sump plug keys available separately from the Britool Hallmark MODS19 set?
Yes. Individuals are available to purchase separately making the Britool Hallmark 19 piece oil drain plug key set a versatile kit for both professionals and DIY'ers alike.