Williams 752MFRMHW Torque Wrench 3/8 in Square Drive

Product Description

The WILLIAMS 752MFRMHW is a 3/8 inch square drive torque wrench built for trade professionals who need accurate, repeatable fastener torque in the field. It covers a torque range of 5 to 75 ft/lb (10.2 to 98.3 Nm) and has an overall length of 16 inches. The preset-style drive delivers consistent results and meets or exceeds ASME and ISO 6789 standards, making it suitable for service work where documentation of calibrated tooling may be required. At 3.13 pounds, the wrench is compact enough for tight installations without sacrificing leverage.

This torque wrench is suited for residential and commercial trade applications where fastener torque must be controlled precisely. HVAC technicians, plumbers, and mechanical contractors commonly use a 3/8 inch drive wrench when torquing refrigerant line fittings, valve packing nuts, flange bolts, and equipment mounting hardware. The 5 to 75 ft/lb range covers the majority of fasteners encountered in mechanical room and rooftop equipment service.

Key Features

• Preset 3/8 inch square drive design for consistent, repeatable torque application
• Torque range of 5 to 75 ft/lb (10.2 to 98.3 Nm) covers a wide variety of mechanical fasteners
• Meets or exceeds ASME and ISO 6789 calibration and accuracy standards
• 16 inch overall length provides adequate leverage in typical mechanical service scenarios
• Scale increments of 0.7 in/lb allow fine torque resolution at the low end of the range
• Weighs 3.13 pounds for field portability

Compatibility

Designed as a standard 3/8 inch square drive torque wrench compatible with 3/8 inch drive sockets and accessories meeting ASME and ISO 6789 tool standards.

Installation Notes

Torque wrenches should be operated by qualified trade professionals familiar with fastener torque specifications for the equipment being serviced. Always confirm the target torque value from the equipment manufacturer before use. Store the wrench at its minimum torque setting when not in use to preserve the internal spring calibration. Do not use this wrench as a breaker bar or apply force beyond the rated maximum torque.