Britool Hallmark IMPUJSET3 3pc Impact Universal Joint Set 1/4", 3/8" & 1/2"

The Britool Hallmark IMPUJSET3 3 Piece Impact Universal Joint Set provides three commonly used square drive sizes for professional automotive, engineering and workshop applications.

The set contains 1/4", 3/8" and 1/2" drive impact universal joints, allowing compatible impact sockets to be driven where direct straight-line access to a fastener is difficult or restricted.

Unlike conventional chrome hand-tool universal joints, these UJs are specifically designed for impact applications and are suitable for use with compatible pneumatic air impact tools and cordless impact wrenches.

Each universal joint is precisely machined and heat treated from Chrome Molybdenum / Cr-Mo steel, providing the strength and durability required to withstand repeated impact loads.

A durable black phosphate finish provides protection against rust and corrosion, while the articulated universal-joint design provides extensive movement to help reach fasteners positioned at an angle or within confined areas.

The three UJs are supplied together in a compact Tool Control foam module, providing organised workshop and toolbox storage.

Key Features

• Genuine Britool Hallmark impact universal joint set
• Britool Hallmark reference: IMPUJSET3
• 3-piece set
• Includes 1/4" drive impact UJ
• Includes 3/8" drive impact UJ
• Includes 1/2" drive impact UJ
• Specifically designed for impact applications
• Suitable for compatible pneumatic air impact tools
• Suitable for compatible cordless impact wrenches
• Manufactured from Chrome Molybdenum / Cr-Mo steel
• Precisely machined and heat treated
• High-strength construction for repeated impact applications
• Protective black phosphate finish
• Helps protect against rust and corrosion
• Articulated universal-joint design
• Provides extensive angular movement
• Helps access fasteners where straight-line access is restricted
• Spring-loaded retaining ball helps secure compatible sockets
• Laser marked with Britool Hallmark branding and part number
• Individual drive sizes available separately
• Supplied in compact Tool Control foam

Three Impact Universal Joints Included

The IMPUJSET3 contains:

• 1/4" Drive Impact Universal Joint
• 3/8" Drive Impact Universal Joint
• 1/2" Drive Impact Universal Joint

Including all three commonly used square drive sizes provides excellent versatility for professional workshops using different impact socket and power-tool configurations.

Each drive size is also available individually for replacement as and when required.

Chrome Molybdenum / Cr-Mo Steel Construction

The impact universal joints are manufactured from heat-treated Chrome Molybdenum steel, commonly abbreviated to Cr-Mo.

This material is particularly suited to impact tooling because of its combination of strength and toughness under repeated impact loads.

The UJs are specifically designed for use in impact applications rather than simply being conventional chrome hand-tool universal joints.

This makes the set suitable for technicians using compatible pneumatic and cordless impact equipment in demanding professional environments.

Suitable for Air & Cordless Impact Tools

The Britool Hallmark IMPUJSET3 is designed for use with compatible impact equipment including:

• Pneumatic air impact wrenches
• Cordless impact wrenches
• Other compatible impact drive equipment

Always match the square drive size of the universal joint to the impact tool and socket being used.

The socket, universal joint and drive tool should all be appropriately rated for the intended impact application.

Universal Joint Articulation

The articulated UJ design allows the drive angle to change between the impact tool and socket.

This makes the universal joints particularly useful when a fastener cannot be approached directly because of surrounding components or restricted working space.

The universal-joint design provides full rotational movement while articulated, helping compatible sockets reach awkwardly positioned fasteners where conventional straight extensions may not provide sufficient access.

This can be particularly useful in engine bays, suspension areas, machinery and other confined mechanical assemblies.

Spring-Loaded Socket Retention

A spring-loaded retaining ball helps secure a compatible socket onto the square drive.

This provides positive socket retention during use and helps reduce the likelihood of the socket becoming unintentionally detached while positioning or operating the tool.

Always check that the socket is correctly and securely engaged before operating an impact tool.

Black Phosphate Protective Finish

Each universal joint features a durable black phosphate finish.

The coating helps protect the underlying Cr-Mo steel against rust and corrosion, supporting long-term service life in professional workshop environments.

As with all professional tools, keeping the UJs clean and dry when not in use will further help maintain their condition.

Laser-Marked Identification

Each universal joint is laser marked with the Britool Hallmark logo and individual part number.

The permanent marking provides clear product identification and makes it easier to identify the correct drive size within a busy professional toolbox or workshop.

Tool Control Foam Storage

The three impact universal joints are supplied together in a compact Tool Control foam module.

The dedicated foam storage provides an organised location for each drive size and makes it easy to identify when a tool has not been returned after use.

This makes the set particularly suitable for professional workshops, technicians and engineers using organised tool-storage systems.

Professional Applications

The IMPUJSET3 is suitable for a broad range of professional applications including:

• Automotive servicing
• Vehicle repairs
• Engine and transmission work
• Suspension servicing
• Commercial vehicle maintenance
• Mechanical engineering
• Machinery servicing
• Plant maintenance
• Agricultural machinery
• Industrial maintenance
• Fleet workshops
• Professional garages
• Engineering workshops
• Confined-access fastening applications

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.

, ,providing clear identification and reflecting the professional tooling heritage of the range.

The IMPUJSET3 combines this established Hallmark range with modern Cr-Mo impact-tool construction, providing three useful drive sizes in one organised professional set.

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.

Important Information

• Brand: Britool Hallmark
• Part number: IMPUJSET3
• Product type: Impact Universal Joint / UJ Set
• Number of pieces: 3
• Drive sizes: 1/4", 3/8" and 1/2"
• Material: Chrome Molybdenum / Cr-Mo steel
• Precisely machined and heat treated
• Finish: Black phosphate
• Designed for impact applications
• Suitable for compatible pneumatic air tools
• Suitable for compatible cordless impact wrenches
• Universal-joint design for improved angled access
• Spring-loaded retaining ball helps secure compatible sockets
• Laser marked with Britool Hallmark logo and part number
• Supplied in Tool Control foam
• Individual drive sizes available separately
• Always use impact-rated sockets and compatible impact equipment
• Ensure the socket is securely retained before operating the tool
• Universal joints are primarily intended to improve access and drive angle, not to increase leverage
• Avoid operating a universal joint at unnecessarily severe angles where a straighter drive path is available
• Inspect impact UJs regularly and remove any tool showing cracks, excessive wear, deformation or other significant damage from service