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