1.41-6 Fine Thread 1.660″ Jt920 Jt921 Jt921L is an HDD drive chuck for Ditch Witch equipment, built for drive chuck connection and tooling setup.
- Machine fit: JT920, JT921, JT921L
- Thread / connection: 1.41-6
- Product family: Drive Chuck
Use the machine model, thread details, and pin or box orientation shown on the product title to confirm fit before ordering. For conversion adapters, verify both connection ends before installation.





![[IMPORT] Ditch Witch JT920/921L Drill Pipe](https://eliteundergroundtools.com/wp-content/uploads/2026/04/blue_thread_standard-300x300.png)





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