Product Description
1/2" Drive Breaker Bar / Power Bar – 600mm | Britool Hallmark
Professional 600mm Breaker Bar for High-Torque Fasteners
The Britool Hallmark 1/2" Drive Breaker Bar is a professional-quality hand tool designed to provide the extra leverage needed for loosening seized, rusted, overtightened and stubborn nuts and bolts.
Also commonly known as a power bar, knuckle bar or flex handle, this breaker bar features a 600mm long handle and hinged 1/2" drive knuckle, making it ideal for automotive servicing, mechanical repairs, workshop maintenance and general engineering applications.
Manufactured from high-quality Chrome Vanadium (Cr-V) steel, the bar is built for strength and durability, with a maximum torque rating of up to 512Nm in accordance with DIN standards.
Key Features
- 1/2" square drive for use with compatible sockets
- 600mm overall length for increased leverage
- Maximum torque rating of up to 512Nm
- Meets applicable DIN torque standard
- Hinged knuckle head for flexible positioning
- Ideal for loosening seized, rusted and stubborn fasteners
- Manufactured from high-quality Chrome Vanadium steel
- Suitable for professional automotive and workshop use
- Also known as a power bar, knuckle bar or breaker bar
- Replaceable knuckle repair kit available – LP600/RK
600mm Length for Increased Leverage
With an overall length of 600mm, this breaker bar provides considerably more leverage than a standard ratchet, allowing greater torque to be applied with less effort.
The long handle makes it particularly useful when tackling stubborn fasteners such as wheel nuts, suspension bolts, hub fasteners and other heavily tightened nuts and bolts.
Hinged 1/2" Drive Knuckle
The hinged knuckle allows the working angle of the socket to be adjusted relative to the handle. This provides greater flexibility when positioning the bar and can improve access when working around vehicle components or in restricted areas.
The standard 1/2" square drive makes the bar compatible with a wide range of commonly used 1/2" drive sockets.
Up to 512Nm Maximum Torque
The breaker bar has a maximum torque capability of up to 512Nm, meeting the applicable DIN standard.
This makes it a dependable choice for automotive repair and general workshop applications where additional leverage is required without stepping up to a larger 3/4" drive breaker bar.
If you require a more heavy duty bar, see our LP750HD
Chrome Vanadium Steel Construction
Manufactured from high-quality Chrome Vanadium steel, the Britool Hallmark power bar offers the strength, durability and wear resistance required for regular workshop use.
Replaceable Knuckle Repair Kit
The knuckle end of a breaker bar is subjected to considerable stress during use and is therefore considered a consumable component.
Rather than replacing the complete breaker bar when the knuckle eventually becomes worn or damaged, a replacement repair kit is available separately under part number LP600/RK.
Technical Specifications
Brand: Britool Hallmark
Tool Type: Breaker Bar / Power Bar / Knuckle Bar
Drive Size: 1/2" Square Drive
Overall Length: 600mm
Maximum Torque: Up to 512Nm
Standard: Meets applicable DIN torque standard
Head Type: Hinged knuckle
Material: Chrome Vanadium Steel
Operation: Manual
Replacement Knuckle Kit: LP600/RK
Typical Applications
The Britool Hallmark 600mm breaker bar is suitable for:
- Automotive servicing and repairs
- Loosening stubborn wheel nuts
- Suspension and chassis fasteners
- Brake and hub components
- Engine and mechanical repairs
- Garage and workshop maintenance
- General engineering
- Agricultural equipment maintenance
- Seized or corroded nuts and bolts
- High-torque manual fastening applications
Socket Compatibility
The standard 1/2" square drive is compatible with suitable 1/2" drive sockets.
Standard hand sockets or appropriately rated impact sockets can be used manually with the breaker bar. Always ensure the socket and accessories being used are suitable for the torque being applied.
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.