Center Rock, Inc. (CRI)

Precision Machining Services for Critical Drilling Applications

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Center Rock offers in-house custom machining services to support the unique needs of rock drilling contractors, engineers, and OEM partners. Whether you need a one-off component, small batch, or large diameter tooling—our machining team has the equipment and experience to deliver with precision and speed. From large-diameter turning to specialty thread profiles, our custom machining capabilities are engineered to handle rugged jobs and critical tolerances—because we build tools that are meant to perform under pressure.

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Our Machining Capabilities
Large-Diameter Lathe Work
  • Machining of mild steel, alloy steels, and heat-treated components
Mill Services
  • CNC machines for complex geometry
Integrated Services

Full collaboration with engineers for design-to-build support

  • Turning capabilities up to 36" OD
  • Custom threads and shoulder profiles for drilling tools and subs
  • Precision pocketing and surface milling
  • Drilling and tapping for mounting hardware or integrated connections
  • Machining support for Center Rock’s fabrication and repair centers
  • Full collaboration with engineers for design-to-build support
Common Projects We Support
  • Custom hammer adapters and drive subs
  • Bit repair and shoulder modifications
  • Thread repair or re-machining of used components
  • Specialized drill rods, couplings, and collars