Security Type

The original leader in fixed diameter hole openers.



The Security hole opener is the most widely known and used fixed diameter hole opener around the world. The HOC Security Type hole opener has been designed to offer increased ease for maintenance and slightly more hole sizes. The Security Type hole openers are more size specific but offer some flexibility by opening up to three hole sizes with multiple cutter assemblies. HOC provides compatible spare parts to meet the inventory needs for Security Custom and Security Field Changeable tools.

Features and Benefits of Security Hole Openers:

  • Field replaceable cutters
  • Connection or integral Bull nose down
  • Cutting Structures available include:
    1. Sealed Bearing uninterrupted Mill Tooth
    2. Sealed Bearing interrupted Mill Tooth
    3. Sealed Bearing TCI

Security Type TDS

Security Custom TDS

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