Introduction
This manual provides essential information for the proper use and maintenance of your Performance Tool M872 1/2-inch Drive 6-Point 22mm Deep Wall Impact Socket. Designed for durability and efficiency, this socket is suitable for various automotive and mechanical applications. Please read these instructions carefully before use.

Image: The Performance Tool M872 22mm Deep Wall Impact Socket, showcasing its robust design and clear size markings.
Product Features
- Strong and Durable: Constructed from high-quality drop-forged chrome vanadium steel for lasting performance and resistance to heavy use.
- Tighter Grip: Features rounded corners that enhance grip on fasteners, minimizing the risk of slipping and rounding off edges.
- Easy Identification: Equipped with large laser-etched size markings for quick and clear identification, even in low-light conditions.
- Versatile: This 6-point impact socket is designed to accommodate a wide range of fastener types and sizes, making it a valuable addition to any toolkit.
- Improved Performance: The 22mm socket size is optimized for various automotive and mechanical tasks, ensuring enhanced efficiency.

Image: A detailed graphic highlighting the 22mm size, 1/2-inch drive, CR-V material, and recessed edges of the socket.
Specifications
| Brand | Performance Tool |
| Model Number | M872 |
| Material | Chrome Vanadium Steel |
| Finish Type | Chrome Vanadium |
| Drive System | Internal Hex (1/2-inch Drive) |
| Socket Size | 22mm |
| Socket Type | 6-Point Deep Wall Impact Socket |
| Item Weight | 8.8 ounces |
| Product Dimensions | 1.7 x 1.3 x 5.3 inches |
| UPC | 039564520723 |
Setup and Initial Use
Removing Packaging (Hang Tabs)
If your socket comes with an anti-theft hang tab, follow these steps to remove it safely:
- Use cutting pliers to snip the plastic above the "Close/Open" icons on the hang tab. Always wear safety glasses when using tools.
- Twist the hang tab 90 degrees counterclockwise.
- Pull the hang tab upwards to remove it from the socket.
Video: Demonstrates the safe removal of anti-theft hang tabs from a socket using cutting pliers and twisting motion.
Attaching to a Drive Tool
The M872 socket is designed for a 1/2-inch drive system. To attach the socket:
- Ensure your impact wrench, ratchet, or breaker bar has a 1/2-inch square drive.
- Align the square opening of the socket with the drive anvil of your tool.
- Push the socket firmly onto the drive anvil until it clicks into place, indicating a secure connection.
Operating Instructions
The Performance Tool M872 22mm Deep Wall Impact Socket is engineered for use with impact tools to loosen or tighten fasteners.
- Select the Correct Size: Verify that the 22mm socket size matches the fastener you intend to work on. Using the incorrect size can damage both the fastener and the socket.
- Secure Attachment: Ensure the socket is securely attached to your 1/2-inch drive impact tool.
- Positioning: Place the socket squarely onto the fastener head. Ensure full engagement to prevent slippage and rounding.
- Operation: Activate your impact tool. For tightening, apply appropriate torque as specified by the fastener manufacturer. For loosening, apply steady power until the fastener breaks free.
- Safety First: Always wear appropriate personal protective equipment, including safety glasses and gloves, when operating impact tools.

Image: A mechanic using an impact wrench with a socket to work on a car wheel, demonstrating typical application.

Image: A mechanic using an impact wrench with a socket to access a fastener in a confined space under a vehicle.
Video: An animated demonstration of a deep impact socket's features, including its 6-point flank drive and 1/2-inch drive, and its application with a ratchet wrench.
Maintenance
Proper maintenance will extend the life and performance of your impact socket.
- Cleaning: After each use, wipe the socket clean of any dirt, grease, or debris. A clean cloth is usually sufficient. For stubborn grime, a mild degreaser can be used, followed by thorough drying.
- Inspection: Regularly inspect the socket for any signs of wear, cracks, or damage. Pay close attention to the drive end and the hex opening. Discontinue use if any damage is observed.
- Storage: Store the socket in a dry environment to prevent rust. Keeping it in a tool tray or box will protect it from impacts and loss.
- Lubrication: While not typically required for sockets themselves, ensure the drive anvil of your impact tool is clean and lightly lubricated as per its manufacturer's recommendations.
Troubleshooting
If you encounter issues while using your impact socket, consider the following:
- Socket Not Fitting Fastener:
- Double-check that the fastener size is indeed 22mm.
- Ensure the fastener head is not stripped or damaged, which could prevent proper seating.
- Socket Slipping on Fastener:
- Confirm the socket is fully seated on the fastener.
- Inspect the socket's hex opening for wear or damage. A worn socket may lose its grip.
- Ensure the impact tool is operating correctly and providing sufficient, consistent power.
- Socket Not Attaching to Drive Tool:
- Verify your drive tool has a 1/2-inch square drive.
- Check for debris or damage in the socket's drive opening or on the tool's drive anvil.
Warranty Information
Performance Tool products are backed by a world-class lifetime warranty. For specific details regarding warranty claims, coverage, and procedures, please refer to the official Performance Tool website or contact their customer support directly.
Support
For further assistance, technical questions, or to provide feedback, please visit the official Performance Tool website or contact their customer service department.





