The 86334125 Shank Stop is a critical impact-limiting component for the Montabert HC50 hydraulic drifter, designed to absorb and control the rearward travel of the drill shank during each percussion cycle. It acts as a precision “hard stop" to regulate the shank’s stroke, preventing over-travel damage to internal components while ensuring consistent, efficient energy transfer to the drill bit.

Manufactured to Montabert’s exact OEM specifications, this shank stop guarantees a seamless drop-in fit with the HC50’s front guide and shank assembly, preserving impact efficiency and operational stability. In harsh underground mining, tunneling, and quarrying environments—where dust, moisture, and extreme vibration are constant—it resists fatigue, wear, and deformation, directly extending the service life of your Montabert rock drill.

• Genuine Montabert Precision for Perfect HC50 Compatibility
• High-Impact Durability for Mining Operations
• Hydraulic Sealing & Debris Protection
• Optimized Design for Maintenance Efficiency

The 86334125 Shank Stop is an indispensable replacement part for your Montabert rock drill in all core operational scenarios:

• Regulating shank stroke in Montabert HC50 rock drills during underground mining blasting hole drilling in hard-rock formations like granite and basalt.
• Protecting the front assembly in Montabert HC50 rock drills used for tunnel anchor and support hole drilling in wet, dusty infrastructure construction projects.
• Maintaining impact efficiency in Montabert HC50 rock drills during quarrying operations for stone cutting, rock excavation, and pre-splitting tasks.
• Restoring factory-spec impact control performance during full overhauls or front-end assembly replacement of Montabert rock drills.