The Britool Hallmark 1/2" Drive Deep Impact Socket Range is engineered for professional automotive, mechanical and industrial applications where additional reach and high-torque performance are required.
Manufactured from premium Chromium-Molybdenum (Cr-Mo) steel and heat treated for strength and durability, these deep impact sockets are designed to withstand the repeated shock loads generated by compatible pneumatic air tools, cordless impact wrenches and powered impact tools.
Each socket features a 6-point hexagon profile for positive engagement with compatible fasteners. The deep profile provides increased reach compared with a standard-depth socket, making the range particularly useful when working with recessed fasteners, longer studs and difficult-to-access nuts and bolts.
The sockets also incorporate Britool's Stress Relief Drive system, designed to improve torque transfer while helping reduce stress and wear on fasteners during demanding high-torque applications.
Available individually in a comprehensive range from 8mm to 36mm, these sockets feature the latest Version 3 (V3) Britool Hallmark design and branding.
Key Features
- Genuine Britool Hallmark professional impact sockets
- Latest Version 3 / V3 design
- 1/2" square drive
- Deep / long-reach socket profile
-
6-point hexagon design
- Metric sizes available from 8mm to 36mm
- Premium Chromium-Molybdenum (Cr-Mo) steel
- Heat treated for strength and durability
- Designed for pneumatic and powered impact tools
- Britool Stress Relief Drive system
- Improved access to recessed fasteners and longer studs
- Ball retaining groove for positive drive connection
- Dual securing holes for optional pin-and-ring retention
- Laser marked for clear identification
- Individual replacement sockets available
- Complete 25-piece deep set available as LDHMPSET836
- Corresponding standard-depth range also available
Sizes Available
The Britool Hallmark V3 deep impact socket range is available in:
8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, 32mm and 36mm
Drive: 1/2" Square Drive
Profile: 6-Point / Hexagon
Depth: Deep / Long Reach
Material: Chromium-Molybdenum Steel
Type: Impact Socket
Version: V3
Please select the required socket size carefully when ordering.
Deep Impact Socket Design
The deep socket profile provides additional reach compared with conventional standard-depth impact sockets.
This makes the range particularly useful when accessing:
- Recessed nuts and bolts
- Fasteners positioned on longer studs
- Suspension components
- Engine and drivetrain fasteners
- Automotive chassis components
- Difficult-to-access mechanical assemblies
The combination of deep reach and impact-rated construction provides a versatile solution for professional garages and workshops carrying out demanding vehicle repairs.
6-Point Hexagon Profile
Each socket features a 6-point hexagon profile, designed to provide positive engagement with compatible six-sided fasteners.
This secure engagement is particularly important during impact applications where substantial torque and repeated shock loads are transmitted through the socket.
Combined with Britool's Stress Relief Drive system, the profile is designed to maximise effective torque transfer while helping minimise unnecessary wear and damage to fasteners.
Chromium-Molybdenum Impact Construction
These sockets are manufactured from Chromium-Molybdenum (Cr-Mo) steel rather than the Chrome Vanadium typically used for conventional hand sockets.
The Cr-Mo construction and heat treatment provide the characteristics required for demanding impact applications and repeated use with compatible powered tools.
Suitable tools can include:
- Pneumatic impact wrenches
- Cordless impact wrenches
- Electric impact tools
- Professional workshop air tools
Always ensure the socket and power tool are correctly matched for the application.
Socket Retention System
Each socket incorporates a ball retaining groove to provide a positive connection with compatible 1/2" square drive tools and accessories.
The sockets also feature dual securing holes, allowing an appropriate pin-and-ring retention system to be fitted where additional socket security is required.
This is particularly useful in professional impact applications where secure socket retention is important.
Professional Automotive & Workshop Applications
The extensive 8-36mm metric range makes these Britool Hallmark deep impact sockets suitable for numerous professional applications, including:
- Automotive servicing and repairs
- Vehicle suspension work
- Engine and drivetrain repairs
- Wheel and hub applications
- Commercial vehicle maintenance
- Mechanical engineering
- Machinery maintenance
- Professional garages
- Automotive workshops
- Fleet maintenance
- Industrial mechanical applications
The deep profile is especially useful where standard-depth impact sockets cannot provide sufficient reach.
V3 Britool Hallmark Design
This range features the latest Version 3 (V3) Britool Hallmark design and branding.
Each socket is precision laser marked for clear size and product identification, making individual sockets easier to locate within a professional workshop and simplifying the ordering of replacement sizes.
Individual sockets are available separately, allowing a missing or damaged size to be replaced without purchasing another complete set.
Complete 25-Piece Deep Impact Set Available
For professional mechanics and workshops requiring the complete range, all 25 sizes are available together as:
LDHMPSET836 – Britool Hallmark 25-Piece 1/2" Drive Deep Impact Socket Set 8-36mm
The complete set provides the full metric size range in an organised professional storage solution.
Standard Depth Impact Range Available
A corresponding standard-depth 1/2" drive 6-point impact socket range is also available.
Complete standard-depth set reference:
LHMPSET836
This allows professional workshops to build matching standard and deep Britool Hallmark 1/2" impact socket collections for comprehensive fastening coverage.
Important Information
- This listing covers individual deep impact sockets in the selected size.
- Sizes available from 8mm to 36mm as listed above.
-
1/2" square drive.
- Deep / long-reach profile.
-
6-point hexagon design.
- Chromium-Molybdenum (Cr-Mo) steel.
- Designed for compatible air and powered impact tools.
- Current V3 design and branding.
- Ball retaining groove.
- Dual holes for optional pin-and-ring retention.
- Individual replacement sockets available.
- Complete 25-piece deep set: LDHMPSET836.
- Corresponding standard-depth set: LHMPSET836.
- Product images may be generic and show a different socket size.
- You will receive the size selected when ordering.
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 carries distinctive 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 the purpose for which they were designed and for their expected service life.
The guarantee does not extend to fair wear and tear, moving parts such as ratchet mechanisms, or consumable items such as bits and repair kits.