Ridgeback Marathon™ Blasthole Bits

Ridgeback Marathon series bits are engineered for less abrasive formations, such as shales, limestones and carbonates, as well as most metamorphic and copper bearing formations. Marathon products contain longer life bearings, additional gage protection and improved cutting structure elements for use in high pull-down applications.

Available bit range

 

 

 

 

Marathon features include:

Advanced high pull-down bearing package - Advanced materials minimize heat and wear for increased bearing life


Improved thrust capacity - Minimizes outward thrust wear to prolong bearing life


High Energy Tumbling (HET) inserts - Varel's patented HET process gives the inserts a unique surface toughness that extends bit life and improves rate of penetration


SR1 gage protection - Combines semi-round top (SRT) tungsten carbide inserts with welded hardmetal for superior wear resistance and optimum gage life


Vented cones - Standard on all Marathon series bits 9" or larger in diameter, vented cones allow a continuous air flow throughout the bearing to provide better cooling and cleaning

The Marathon advantage:

  • Increased penetration
  • Larger cuttings
  • Less dust
  • Longer bit life
  • Reduced costs
  • Reliable, consistent bit performance
  • Lowest total drilling costs (TDC)