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STS (Single Tube System) Counterboring tools

Counterboring

Counterboring is used to open up a pre-bored hole to obtain a more exact diameter. In some instances where machine power is limited, a hole can be drilled with a smaller diameter drill head and counterbored to the required diameter.


Indexable Counterboring Head

Outer Thread

Style Dia.
Dc(mm)		 Tolerance Surface roughness
Ra		 Feature/Use  
KUSTR INDEX COUNTERBORING 25.00 - IT10 1-2μm
  • High productivity & High accuracy.
  • Can be used with various materials.
  • 3 corner insert for ø40 and above.
  

Inner Thread

Style Dia.
Dc(mm)		 Tolerance Surface roughness
Ra		 Feature/Use  
KUSTR INDEX COUNTERBORING 25.00 - IT10 1-2μm
  • High productivity & High accuracy.
  • Can be used with various materials.
  • 3 corner insert for ø40 and above.