Impact Socket 1" to 22 mm Square Adapter (4-point) JCB JCB-4819022

An impact socket adapter that converts a 1" drive to a 22 mm square 4-point interface. Manufactured by JCB, model JCB-4819022, this heavy-duty adapter is designed for use with impact wrenches and pneumatic or electric torque tools. The adapter provides a secure 4-point connection to transfer high torque reliably in automotive, industrial and maintenance environments.

Advantages

The adapter delivers a robust 4-point connection that minimises slipping and rounding of fasteners under high torque. Its construction is intended for repeated use with impact tools, offering resistance to impact stress and deformation. The simple conversion from a 1" drive to a 22 mm square interface makes it versatile for workshops that use a mix of imperial and metric tools, reducing the need for multiple socket sets.

Suitable for

• Automotive repair and wheel nut removal where high torque is required
• Industrial assembly and maintenance with pneumatic or electric impact tools
• Heavy machinery servicing and onsite repair work
• Workshops that require adapting between 1" drives and 22 mm square sockets

Key specifications

• Input drive: 1" square drive (for impact tools)
• Output interface: 22 mm square, 4-point connection
• Material: heavy-duty impact-grade steel (heat treated for strength)
• Intended use: compatible with impact wrenches and torque tools
• Connection type: 4-point design to reduce fastener damage

How to use

Select the adapter and fit the 1" square end into the drive of a compatible impact wrench or torque tool. Attach the 22 mm square socket or accessory onto the output end, ensuring the 4-point faces engage fully. Operate the impact tool at the appropriate torque and speed for the fastener and application, observing recommended safety practices for impact tools and wearing suitable personal protective equipment. After use, inspect the adapter for signs of wear or deformation before storing it in a dry, organised tool area.

Usage recommendations

Use the adapter only with impact-rated sockets and tools; avoid using with non-impact hand ratchets. Regularly check for cracks, rounding or excessive wear. For high-torque industrial tasks, pair the adapter with tools and sockets rated for the required torque to ensure safe and reliable operation.