Britool Hallmark 1/4" Drive Extension Bar Range 50-375mm Chrome Vanadium (V3)

The Britool Hallmark 1/4" Drive Extension Bar Range is designed to provide professional-quality performance when extra reach is required for automotive, engineering, and general workshop applications. Manufactured from high-quality Chrome Vanadium steel, these extension bars deliver excellent strength, durability, and dependable performance for everyday professional use.

Each extension bar features a spring-ball socket retainer, ensuring sockets remain securely attached during use while allowing quick and easy socket changes. The rigid, fixed design provides positive drive and efficient torque transfer, making these extensions ideal for accessing recessed or difficult-to-reach fasteners.

Available in a choice of seven lengths, this range offers the flexibility to tackle everything from close-access work to deep-reach applications. Individual extension bars can be purchased separately or as part of the 7-piece Tool Control foam set (SESET7B) or the 12-piece mixed drive extension bar set (SMLES12).

Matching 3/8" and 1/2" drive fixed extension bars are also available, along with corresponding wobble extension bar ranges for improved angled access.

Key Features

• Genuine Britool Hallmark professional quality
• 1/4" square drive extension bars
• Manufactured from high-quality Chrome Vanadium steel
• Fixed design for positive torque transfer
• Spring-ball socket retainer securely holds sockets
• Ideal for recessed and hard-to-reach fasteners
• Individual lengths available
• Complete 7-piece set available (SESET7B)
• Also available as part of the 12-piece mixed drive set (SMLES12)
• Matching 3/8" and 1/2" drive ranges available
• Wobble extension bar versions also available

Available Lengths

Choose from the following lengths:

• 50mm
• 75mm
• 100mm
• 150mm
• 200mm
• 250mm
• 375mm

Professional Performance

Designed to improve accessibility while maintaining a secure, straight drive connection, these extension bars are ideal for use where sockets need additional reach without sacrificing strength or control. The spring-ball retention system helps prevent accidental socket release during use, improving both safety and efficiency.

Ideal Applications

Suitable for:

• Automotive servicing and repairs
• Mechanical engineering
• General workshop maintenance
• Machinery servicing
• Accessing recessed fasteners
• Tight and restricted working areas
• Professional technicians
• DIY enthusiasts

Complete Your Tool Collection

These extension bars are available individually or as part of the following Britool Hallmark sets:

• SESET7B – 7 Piece 1/4" Drive Extension Bar Set
• SMLES12 – 12 Piece Mixed Drive Fixed Extension Bar Set

Matching 3/8" and 1/2" drive extension bars and wobble extension bar ranges are also available to provide a complete professional socket accessory solution.

Please note image used may be of a different size but you will receive the length corresponding to your order, so please order with care.

Genuine Britool Hallmark Quality

Built for strength, reliability, and everyday workshop use, the Britool Hallmark 1/4" Drive Extension Bar Range delivers the reach and durability professionals demand, making it an essential addition to any socket tool collection.