Britool Hallmark 1/4" Drive Wobble Extension Bar Range 50-200mm Chrome Vanadium (V3)
SEW50B
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The Britool Hallmark 1/4" Drive Wobble Extension Bar Range is designed to improve access to awkward or hard-to-reach fasteners while maintaining a secure drive connection. Manufactured from high-quality Chrome Vanadium steel, these professional-grade extension bars provide outstanding strength, durability, and reliable performance for automotive, engineering, and general workshop applications.
The precision-engineered wobble drive allows the socket to operate at a slight angle, making it easier to reach fasteners that are not perfectly aligned. Each extension bar also features a spring-ball socket retainer, securely holding sockets in place while allowing quick and convenient socket changes.
Available in a choice of five lengths, these extension bars offer excellent versatility for working in confined or recessed areas where standard extensions may not provide sufficient access.
Individual extension bars are available separately or as part of the Britool Hallmark SMLWES12 12 Piece Mixed Drive Wobble Extension Bar Set. Matching 3/8" and 1/2" drive wobble extension bars are also available to complete your socket accessory collection.
Key Features
- Genuine Britool Hallmark professional quality
- 1/4" square drive wobble extension bars
- Precision wobble design for improved angled access
- Manufactured from high-quality Chrome Vanadium steel
- Spring-ball socket retainer securely holds sockets
- Ideal for awkward and recessed fasteners
- Individual lengths available
- Available as part of the SMLWES12 mixed drive wobble extension set
- Matching 3/8" and 1/2" drive wobble extensions also available
Available Lengths
Choose from the following lengths:
- 50mm
- 75mm
- 100mm
- 150mm
- 200mm
Professional Performance
The wobble design provides additional flexibility when accessing fasteners positioned at slight angles, making these extension bars ideal for confined engine bays, machinery, and restricted workspaces. The spring-ball retention system ensures sockets remain securely attached throughout use for improved efficiency and safety.
Ideal Applications
Suitable for:
- Automotive servicing and repairs
- Mechanical engineering
- Workshop maintenance
- Machinery servicing
- Accessing recessed fasteners
- Tight and confined working areas
- Professional technicians
- DIY enthusiasts
Complete Your Socket Accessory Collection
These extension bars are available individually or as part of the following Britool Hallmark set:
- SMLWES12 – 12 Piece Mixed Drive Wobble Extension Bar Set
Matching 3/8" and 1/2" drive wobble extension bars are also available to provide a complete professional socket accessory solution.
Please Note
The product image is for illustration purposes only and may show a different extension bar length. You will receive the length selected when placing your order. Please ensure you choose the correct size before purchasing.
The Brand
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 and for the expected life of the tool. 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, moving parts such as ratchet mechanisms or consumable items such as bits and repair kits.
Weight & Dimensions
Weight & Dimensions
- Length
- 50 mm
- Length
- 75 mm
- Length
- 100 mm
- Length
- 150 mm
- Length
- 200 mm

£7.99