The Vermeer Premium 4.5-in (11.4-cm) Ace™ directional drill bit is our best Ace bit, offering superior durability, longevity and wearability to horizontal directional drilling contractors who need a tool for high risk, aggressive ground conditions.

✔Greater level of carbide coverage compared to other HDD bits increases reliability.

✔Aggressive tapered bit front improves penetration rates.

✔Ideal HDD tooling for productivity in heavy cemented cobble, hard packed soils and softer shale.

✔Bit Boss™ Retention System features, 3 shoulder screws to help reduce shearing off bolts underground.