The Rhino 2-1/2″ Chuck-Lok with Locking Nut is a specialized coupling system designed for secure and efficient operation in heavy-duty post-driving applications.
- Design: This 2-1/2″ adapter is engineered to fit Rhino’s PD-200 pneumatic post driver, requiring a 5-1/2″ or 7″ master chuck assembly for optimal performance. The locking nut (Model 301920) is a critical component that ensures the adapter remains securely fastened during operation, preventing accidental disengagement.
- Applications: This Chuck-Lok system is ideal for:
- Installing fencing posts in agricultural or commercial settings
- Driving ground rods for electrical grounding
- Erecting signposts or guardrails in construction projects
- Materials: Both components are constructed from high-grade steel, offering durability and resistance to wear and corrosion.
Find the matching size or fitment across our Rhino HPD hydraulic series accessories and it works with our rhino hyd. The rhino post driver buyer’s guide covers how to match one to the job. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.

