Fixed Type Underreamer

Stiletto Underreamer

Fixed Type Underreamer

The Stiletto from BesteBit is an under reamer, which is capable to be used while drilling. Beste’s Stiletto, is a single body robust design, which has an opening ratio of 25%.

Major advantages:

  • Suitable for all formation and RSS systems
  • Simple and reliable operation
  • Activation either via ball drop or via controlled pressure drop
  • Bidirectional mass balanced cuttring structure