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Britool Hallmark

19Pc 3/8" Drive Impact Socket Set, Bi-Hex / 12-Point - Britool Hallmark

19Pc 3/8" Drive Impact Socket Set, Bi-Hex / 12-Point - Britool Hallmark

SKU:MBMPSET19 - PROM1955

Regular price £45.00
Regular price £57.47 Sale price £45.00
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Product FAQs

Frequently Asked Questions

Are these sockets suitable for impact wrenches?

Yes. They are manufactured from heat-treated Chrome Molybdenum steel and are specifically designed for use with pneumatic impact guns and cordless impact wrenches.

What is the advantage of a 12-point socket?

A 12-point (bi-hex) socket offers twice as many engagement positions as a 6-point socket, allowing faster alignment and easier access in confined spaces where repositioning is limited.

What sizes are included?

The set contains nineteen standard-depth metric sockets covering every size from 6mm to 24mm.

What is the purpose of the ball-retaining groove?

The ball-retaining groove provides a secure connection between the socket and any standard 3/8" drive ratchet, extension or impact tool.

What are the side retention holes used for?

The side holes allow the socket to be secured with a retaining pin and O-ring on compatible impact tools for additional security during heavy-duty applications.

Can these sockets be used with standard hand tools?

Yes. They are fully compatible with all standard 3/8" square drive ratchets, breaker bars and extensions, as well as impact tools.

Is the EVA tray suitable for professional toolboxes?

Yes. The precision-cut EVA foam tray is designed to fit most professional roller cabinets, tool chests and workshop drawers while keeping your sockets organised and protected.

Who is this socket set designed for?

It is ideal for professional mechanics, automotive technicians, engineers, fleet maintenance workshops, agricultural engineers, industrial maintenance professionals and serious DIY enthusiasts.

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Product Description

19 Piece 3/8" Drive Impact Socket Set 6-24mm (12-Point Bi-Hex) – Britool Hallmark

Five Key Highlights

  • Professional 19-piece 3/8" drive impact socket set covering 6mm–24mm for automotive, mechanical and industrial applications.
  • Manufactured from premium Chrome Molybdenum (Cr-Mo) steel for exceptional strength, durability and long service life.
  • 12-point bi-hex profile allows faster socket engagement and easier alignment on compatible fasteners.
  • Designed for use with impact wrenches, pneumatic air tools and high-torque cordless impact drivers.
  • Supplied in a precision-cut EVA foam tray for organised storage, excellent tool control and quick socket identification.

Product Summary

The Britool Hallmark 19 Piece 3/8" Drive 12-Point Impact Socket Set is a professional-quality metric socket set engineered for demanding workshop, automotive and industrial use. Manufactured from premium heat-treated Chrome Molybdenum (Cr-Mo) steel, these impact sockets provide exceptional durability and resistance to repeated high-torque applications. Featuring a 12-point bi-hex profile for quicker socket alignment and efficient fastening, along with ball-retaining grooves and pin-and-ring retention holes for secure attachment, this comprehensive set is ideal for professional mechanics, technicians and engineers. Supplied in a durable EVA foam tray, it keeps every socket organised, protected and ready for use.


Product Description

Construction & Materials

Each socket is manufactured from premium Chrome Molybdenum (Cr-Mo) steel, delivering exceptional toughness and resistance to impact loads. Heat-treated for maximum strength and finished with a durable black phosphate coating, the sockets are built to withstand demanding workshop environments while resisting corrosion and wear.

Every socket is permanently laser marked with the Britool Hallmark logo, socket size and part number for quick identification during busy workshop use.


Features & Benefits

  • Professional 19-piece metric impact socket set
  • Standard 3/8" square drive
  • 12-point bi-hex profile for faster fastener engagement
  • Premium heat-treated Chrome Molybdenum (Cr-Mo) steel construction
  • Durable black phosphate finish resists corrosion and wear
  • Ball-retaining groove ensures a secure fit with 3/8" drive accessories
  • Side retention holes allow use with retaining pin and O-ring
  • Designed for pneumatic impact guns and cordless impact wrenches
  • Laser-etched socket sizes for quick identification
  • Precision-cut EVA foam tray for organised storage
  • Suitable for professional workshop and industrial environments

Applications

Ideal for a wide range of professional applications, including:

  • Automotive servicing and repairs
  • Engine and transmission maintenance
  • Suspension and steering repairs
  • Commercial vehicle servicing
  • Agricultural machinery maintenance
  • Industrial engineering
  • Plant maintenance
  • Mechanical assembly and repair
  • Workshop and mobile mechanic tool kits

The 12-point profile is particularly useful where quicker socket alignment is required, making it easier to engage fasteners in confined or awkward working positions.


Storage & Organisation

The included high-density EVA foam tool control tray securely holds every socket in its designated position, helping to prevent loss and improve workshop efficiency. Designed to fit most professional tool chests, roller cabinets and workshop drawers, it provides excellent organisation while making missing sockets immediately noticeable.


Technical Specifications

Specification Details
Brand Britool Hallmark
Drive Size 3/8" Square Drive
Socket Type Standard Impact Socket
Socket Profile 12-Point (Bi-Hex)
Material Chrome Molybdenum (Cr-Mo) Steel
Finish Black Phosphate
Number of Pieces 19
Socket Sizes 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24mm
Retention System Ball Retaining Groove & Side Pin-and-Ring Hole
Storage EVA Tool Control Foam Tray
Suitable For Impact Wrenches, Air Tools & Cordless Impact Drivers

What's Included

  • 19 × 3/8" Drive Standard 12-Point Impact Sockets:
    • 6mm
    • 7mm
    • 8mm
    • 9mm
    • 10mm
    • 11mm
    • 12mm
    • 13mm
    • 14mm
    • 15mm
    • 16mm
    • 17mm
    • 18mm
    • 19mm
    • 20mm
    • 21mm
    • 22mm
    • 23mm
    • 24mm
  • Precision-cut EVA Foam Storage Tray

EAN: 5060960270757.

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.

Product Specification

Height 40 mm
Length 190 mm
Weight 1.15 kg
Width 200 mm