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The WILLIAMS COMFORT PRODUCTS JHWTM-391RSD is a replacement square drive designed for use with planetary-gear and plate reaction torque multipliers. This component restores drive engagement on torque multiplying tools that have experienced wear or damage to the output drive interface. It is sold individually and is intended for installation by mechanics, maintenance technicians, and industrial service professionals who work with high-torque fastening equipment.
This square drive replacement is suited for service environments where planetary-gear torque multipliers and plate reaction torque multipliers are part of the regular tool inventory. Typical applications include heavy equipment maintenance, industrial assembly, and any setting where controlled high-torque output is required. The part ships as a single unit, making it straightforward to stock as a service component.
Designed as a replacement square drive for planetary-gear and plate reaction torque multipliers. Consult your torque multiplier documentation to confirm drive size and interface requirements before ordering.
Installation should be performed by a qualified mechanic or tool service technician familiar with torque multiplier disassembly procedures. Ensure the tool is fully de-energized or disconnected from any power or pneumatic source before beginning drive replacement. Verify that the replacement drive matches the output interface specifications of the multiplier before final assembly. Follow the tool manufacturer's service manual for proper reassembly sequence.
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