Williams Comfort Products QZO66ADP Torque Wrench Head

Product Description

The WILLIAMS COMFORT PRODUCTS QZO66ADP is a 2 1/16-inch open-end torque wrench head engineered for high-torque fastening applications. It uses a Z Dual Pin shank type, which locks securely onto compatible torque wrench drives and resists slippage under heavy load. Maximum torque capacity is 480 ft-lb, making this head suitable for demanding industrial and trade fastening tasks. The open-end head design allows access to fasteners in restricted spaces where a box or socket head cannot seat. Licensed tradespeople in mechanical, industrial, and heavy equipment service work typically use this tool when precise, high-force torque application is required.

This torque wrench head is sized at 2 1/16 inches and follows SAE specification, making it appropriate for large SAE-standard fasteners encountered in HVAC equipment, heavy mechanical assemblies, and industrial piping systems. The dual pin retention system and open-end configuration are well suited to applications where standard socket access is limited. The center-of-fastener to retaining pin measurement is 5 3/4 inches, which is relevant for clearance planning in tight installation environments.

Key Features

• 2 1/16-inch open-end head for large SAE fasteners
• Z Dual Pin shank type for secure, slip-resistant drive engagement
• Maximum torque rating of 480 ft-lb for heavy-duty fastening
• Center of fastener to retaining pin distance of 5 3/4 inches
• SAE specification for compatibility with standard inch-measurement fasteners

Compatibility

Designed for use with torque wrench drives that accept a Z Dual Pin shank connection. Intended for SAE fasteners requiring a 2 1/16-inch open-end head. Consult your torque wrench drive manufacturer for confirmed shank compatibility before installation.

Installation Notes

This head is installed and serviced by qualified mechanical or industrial tradespeople familiar with high-torque fastening procedures. Confirm the shank connection is fully seated and the retaining pin is engaged before applying torque. Do not exceed the rated maximum torque of 480 ft-lb. Inspect the head and shank for wear or damage before each use.

Technical Specifications

• Head Size: 2 1/16 inches
• Head Type: Open End
• Shank Type: Z Dual Pins
• Measurement Standard: SAE
• Maximum Torque: 480 ft-lb
• Center of Fastener to Retaining Pin: 5 3/4 inches
• Length: 8.27 inches
• Width: 4.14 inches
• Height: 1.18 inches
• Weight: 3.76 pounds

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QZO66ADP