Williams Comfort Products 4-35B Impact Extension

Product Description

The WILLIAMS COMFORT PRODUCTS 4-35B is a 1/2 inch drive impact extension designed for use with impact wrenches and drive tools in demanding trade applications. Built to handle the torque and vibration generated by pneumatic and electric impact drivers, this extension adds reach in confined or hard-to-access fastener locations. At 5 inches in length and weighing 0.37 pounds, it is a compact and manageable addition to any professional socket set. HVAC technicians, plumbers, electricians, and mechanical contractors will find this extension useful when standard socket access is blocked by equipment housings, flanges, or structural framing.

The 4-35B suits residential and commercial service work where a 1/2 inch drive impact tool is the standard. Typical applications include equipment installation, mechanical fastening during unit changeouts, and service calls requiring access to recessed hardware. The extension is sold individually, making it straightforward to replace or add to an existing drive set without purchasing a full kit.

Key Features

• 1/2 inch drive connection compatible with standard impact sockets and drive tools
• 5 inch length provides reach in tight or obstructed fastener locations
• Rated for impact use, handling the high-torque output of pneumatic and electric impact wrenches
• Lightweight at 0.37 pounds for reduced fatigue during overhead or sustained work
• Sold as an individual unit for targeted replacement or set expansion

Compatibility

Designed as a standard 1/2 inch drive impact extension compatible with impact wrenches and drive tools using the 1/2 inch square drive interface.

Installation Notes

This extension is intended for use by trade professionals operating impact wrenches in mechanical, HVAC, plumbing, or electrical service environments. Ensure the extension is fully seated on the impact tool drive before applying torque. Inspect the extension for cracks or wear before each use, as impact tooling subjected to repeated high-torque cycles can develop stress fractures. Do not use impact extensions with hand ratchets, as they are not rated for that application.

Technical Specifications

• Drive Size: 1/2 inch
• Length: 5 inches
• Weight: 0.37 pounds
• UPC: 662459260048
• Sold As: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: 4-35B