- The optimized wing angle design achieves smooth, safe,and effective bottom-hole enlargement,with a maximum borehole enlargement ratio of 25%.
- The use of IDS design software enables a more rational drill bit design,optimizing the tooth structure of the leading and expanding bits, minimizing the eccentric motion of the drill bit at the bottom hole,achieving smooth cutting,and improving the drill bit life.
| Type | borehole enlargement ratio |
| Micro-borehole enlargement | <3% |
| One-stage borehole enlargement | ≤18% |
| Two-stage borehole enlargement | <25% |