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The JET EQUIPMENT WL9-2903110 is a casing nut sub assembly designed as a direct replacement component for JET machinist and tradesman vises. This part fits into the mechanical drive mechanism of the vise, providing the threaded interface that allows the jaw to advance and retract smoothly under load. It is a unit-of-measure single piece sold individually. Licensed machinists, millwrights, and shop maintenance technicians typically source this part when restoring worn or damaged vise assemblies to full working condition.
This casing nut sub assembly is suited for use in machine shop, fabrication, and trade training environments where JET bench vises see regular heavy-duty use. It is designed for the 300 and 1740 and 2040 series vises across multiple production years, covering both pre-1993 and post-1993 tradesman vise builds as well as pre-1998 and post-1998 machinist vise builds. The part is sold as a complete sub assembly, reducing disassembly time during service.
Compatible with the following JET vise models as stated by the manufacturer: 300 Machinist Vise (before 1998), 300 Machinist Vise (after 1998), 1740 Tradesman Vise (before 1993), 1740 Tradesman Vise (after 1993), 2040 Tradesman Vise (before 1993), and 2040 Tradesman Vise (after 1993).
This part is typically installed by a machinist or qualified shop maintenance technician. Before beginning disassembly, secure the vise and ensure it is removed from the workbench or locked out if mounted in a fixed installation. Standard hand tools are sufficient for most vise casing nut replacements. Inspect the lead screw and jaw slides for additional wear before reassembling to avoid repeat service calls.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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