Williams 501MRMHW Micrometer Torque Wrench 10-50 In/lb

Product Description

The WILLIAMS 501MRMHW is a micrometer-style torque wrench with a 1/4 inch hex drive, designed for precision fastening applications requiring low-range torque control. It delivers a torque range of 10.0 to 50.0 inch-pounds (1.4 to 5.4 Nm), making it well-suited for delicate or close-tolerance assemblies where over-torquing causes damage. The wrench measures 10.15 inches in overall length and weighs 1.34 pounds. It meets or exceeds ASME and ISO 6789 standards, confirming calibrated accuracy out of the box. HVAC technicians, electricians, and plumbers reach for this tool when torque specs are tight and a standard drive ratchet is not appropriate.

The 501MRMHW fits naturally into service work involving small fasteners, sensor fittings, access panels, or equipment covers where low torque values are critical. Its compact 1/4 inch hex drive accepts standard 1/4 inch hex bits and sockets, giving technicians flexibility across a range of fastener types. The overall package dimensions of 2.56 inches by 2.95 inches by 12.8 inches make it easy to store in a service bag or tool chest tray. It ships as a single unit and is intended for professional trade use where torque verification is part of a quality install or service workflow.

Key Features

• Micrometer-style adjustment for repeatable torque settings within the 10.0 to 50.0 In/Lb range
• 1/4 inch hex drive accepts standard hex bits and sockets
• Meets or exceeds ASME and ISO 6789 calibration standards
• Compact 10.15 inch overall length suits tight service environments
• Lightweight at 1.34 pounds for all-day service use

Compatibility

Designed for use with standard 1/4 inch hex drive bits and sockets. Suitable for any application requiring low-range torque control in the 10.0 to 50.0 In/Lb (1.4 to 5.4 Nm) window.

Installation Notes

This torque wrench should be used by qualified technicians familiar with torque specifications for the fasteners being serviced. Always set the wrench to the lowest torque value after use to relieve spring tension and preserve calibration accuracy. Do not use as a breaker bar or apply force beyond the rated maximum of 50.0 In/Lb, as this will damage the internal mechanism. Periodic recalibration per ISO 6789 guidelines is recommended to maintain measurement accuracy.