Product Description

Britool Hallmark 6 Piece Impact Socket Adapter Set | Cr-Mo Drive Converter Set 1/4", 3/8", 1/2" & 3/4" with EVA Foam Tray

Key Features

• Professional 6-piece impact socket adapter and drive converter set covering the most common square drive sizes
• Manufactured from premium heat-treated Chromium-Molybdenum (Cr-Mo) steel for maximum strength and durability
• Compatible with impact wrenches, air tools, cordless impact tools and hand tools
• Quickly converts between 1/4", 3/8", 1/2" and 3/4" square drive accessories
• Supplied in a precision-cut EVA foam tool control tray for organised toolbox storage

Professional Impact Socket Adapter Set for Maximum Versatility

The Britool Hallmark 6 Piece Impact Socket Adapter Set is designed to maximise the versatility of your socket collection by allowing fast and secure conversion between the most commonly used square drive sizes. Whether you're using impact sockets, extension bars, universal joints or other drive accessories, these heavy-duty adapters provide a reliable solution for adapting your tools to suit the job.

Manufactured from heat-treated Chromium-Molybdenum (Cr-Mo) steel, each adapter is engineered to withstand the extreme torque generated by pneumatic air tools, cordless impact wrenches and professional impact equipment, making this set an essential addition to any workshop.

Heavy-Duty Chromium-Molybdenum Construction

Forged from premium Chromium-Molybdenum steel, each adapter delivers exceptional toughness, impact resistance and long service life. The heat-treated construction is specifically designed for high-torque impact applications, providing the durability required for demanding automotive, engineering and industrial environments.

A corrosion-resistant finish helps protect the adapters against rust and everyday workshop wear, ensuring dependable performance over years of professional use.

Convert Between Multiple Drive Sizes

This versatile set includes six of the most frequently used drive size conversions:

• 1/4" Female × 3/8" Male
• 3/8" Female × 1/4" Male
• 3/8" Female × 1/2" Male
• 1/2" Female × 3/8" Male
• 1/2" Female × 3/4" Male
• 3/4" Female × 1/2" Male

These adapters allow mechanics and technicians to use existing sockets and accessories across different drive systems without the need to purchase duplicate tools, improving flexibility while reducing workshop costs.

Organised EVA Foam Storage

Each adapter is permanently laser-etched with the Britool Hallmark logo and part number for quick identification and supplied in a premium EVA foam tool control tray. The tray keeps every adapter securely organised and fits neatly into professional toolboxes, roll cabs and top boxes, making it easy to identify missing tools at a glance.

Ideal for Automotive, Engineering & Industrial Applications

Perfect for professionals working with:

• Impact sockets
• Ratchets
• Breaker bars
• Extension bars
• Universal joints
• Torque wrenches
• Cordless impact wrenches
• Pneumatic air tools
• Industrial maintenance equipment
• Agricultural and construction machinery

Ideal for automotive workshops, engineering facilities, fleet maintenance, manufacturing and serious home garages.

Technical Specifications

Product Type: Impact Socket Adapter & Drive Converter Set
Material: Heat-treated Chromium-Molybdenum Steel (Cr-Mo)
Drive Conversions Included:

• 1/4" Female × 3/8" Male
• 3/8" Female × 1/4" Male
• 3/8" Female × 1/2" Male
• 1/2" Female × 3/8" Male
• 1/2" Female × 3/4" Male
• 3/4" Female × 1/2" Male
  Storage: EVA Foam Tool Control Tray
  Markings: Laser-etched Hallmark logo and part numbers
  Suitable For: Impact wrenches, air tools, cordless impact drivers, ratchets, breaker bars and torque wrenches

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.