Williams Comfort Products QJD8A-72 Torque Wrench Head

Product Description

The WILLIAMS COMFORT PRODUCTS QJD8A-72 is a square ratcheting torque wrench head designed for precision fastening applications in trade and industrial settings. Built around a 1/4 inch drive, it accepts standard 1/4 inch drive sockets and delivers a maximum torque output of 60 ft-lb. The shank measures 0.425 inches in diameter and uses a J-type shank configuration for secure attachment to a compatible torque wrench handle. This head is rated for SAE fastener applications and is sold individually. Mechanics, HVAC technicians, and industrial maintenance professionals install this type of head when a low-profile or dedicated ratcheting torque wrench setup is required for confined or repetitive fastening work.

This torque wrench head is suited for use in residential and light commercial maintenance, HVAC equipment service, refrigeration system assembly, and general mechanical applications where controlled torque is required. The square ratcheting head style allows for efficient use in tight spaces and repetitive fastening sequences without removing the tool from the fastener between strokes. It is sold as a single unit and is compatible with SAE fastener sizes appropriate for a 1/4 inch drive system.

Key Features

• 1/4 inch drive size for use with standard 1/4 inch drive sockets
• Square ratcheting head type for efficient use in confined spaces
• Maximum torque rating of 60 ft-lb
• J-type shank with 0.425 inch shank diameter for secure handle attachment
• SAE specification for use with inch-standard fasteners
• Compact profile: approximately 4.1 inches in length and 1.4 inches in height

Compatibility

Designed for use with compatible J-type torque wrench handles accepting a 0.425 inch J-shank in SAE drive configurations. Verify handle and shank compatibility before installation.

Installation Notes

Installation of this torque wrench head should be performed by a qualified mechanic or service technician familiar with torque tool assembly and calibration practices. Ensure the wrench handle is fully de-loaded and at its lowest torque setting before attaching or removing the head. Confirm the shank seats fully and locks securely into the handle before applying torque. Follow the equipment manufacturer's torque specifications and applicable service codes when using this tool on pressurized or safety-critical fasteners.

Technical Specifications

• Drive Size: 1/4 inch
• Head Type: Square Ratcheting
• Shank Size: 0.425 inches
• Shank Type: J
• Maximum Torque: 60 ft-lb
• Length: 4.1 inches
• Width: 1 inch
• Height: 1.4 inches
• Weight: 0.17 pounds
• Specification: SAE
• Sold As: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: QJD8A-72