Part number 86338985 drill bit tail ring is for Montabert HC109 rock drill

Drill Bit Tail Ring (Part No. 86338985) – Suitable for Montabert HC109 Rock Drill

The Drill Bit Tail Ring, part number 86338985, is a precision-engineered structural component designed for the Montabert HC109 rock drill. It serves as the rear support and alignment ring for the drill shank adapter, ensuring proper guidance and stability during high-impact drilling operations.

Description

The drill bit tail ring is manufactured from high-strength, wear-resistant alloy steel to withstand the intense forces, vibration, and abrasion generated during rock drilling. Installed at the rear of the shank adapter, this ring provides a secure seating and alignment interface between the shank and the drill’s internal components.

Its precise fit minimizes lateral movement and vibration, reducing wear on the shank, piston, and surrounding internal parts. By maintaining optimal alignment during reciprocating and rotational motion, the tail ring contributes to improved drilling efficiency, reduced component fatigue, and extended equipment life.

Key Features

• Part Number: 86338985

• Compatible With: Montabert HC109 rock drill

• Material: High-strength alloy steel

• Function:

  • Provides rear support and alignment for the shank adapter

  • Helps absorb lateral loads and vibration

  • Reduces wear on internal components

• Precision Fit: Ensures stable performance under heavy-duty drilling conditions

• Durability: Designed for high impact, abrasion, and shock resistance

Applications

• Mining and Quarrying — Enhanced stability and wear resistance in continuous drilling

• Construction and Tunneling — Supports accurate, high-efficiency drilling

• Heavy-Duty Rock Drilling — Ideal for demanding environments with repeated impact cycles

Conclusion

The Drill Bit Tail Ring (86338985) is an essential wear and support part for the Montabert HC109 rock drill. Its robust alloy steel construction and precision-fit design ensure stable shank alignment, reduced wear, and improved drilling performance, making it a key component for maintaining reliability in tough drilling applications.