TUNNEL AND MINING EQUIPMENT
STEEL CONSTRUCTION
With over 25 years of experience, Ayyıldız Engineering provides high-quality engineering solutions in tunneling, infrastructure, and steel construction. With its modern production facilities, robust machinery, and expert staff, it produces to international standards. Its innovative approach combines reliability, durability, and engineering to build the future.
2-GROOVE PILOT BIT | |||
THREAD TYPE | MODEL | OUTER DIAMETER | THICKNESS |
R32,T38,R38,T45,T51 | 3,5'' | 89 | 4-6 mm |
R32,T38,R38,T45,T51 | 4,5'' | 114 | 6-8 mm |
Ay-Yıldız Engineering 2-Groove Pilot Bits are specialized drilling tools designed for preliminary drilling and directional guidance in Umbrella (Canopy) Arch Systems. Their dual-Groove structure enables fast and controlled evacuation of cuttings during drilling, reducing overall operation time and increasing equipment efficiency.
The pilot bit plays a critical role in establishing the correct drilling line prior to ring bit installation. By stabilizing the drilling direction, it ensures precise and safe placement of canopy pipes. Manufactured from high-strength materials, the Ay-Yıldız Engineering 2-Groove Pilot Bit offers long-lasting and reliable performance across various rock hardness levels.
Preliminary drilling and directional guidance for canopy pipe installation
Preparation before ring bit operations
Cuttings removal and precise alignment during tunnel excavation
Dual-Groove design enabling efficient cuttings evacuation and smooth preliminary drilling
High wear resistance and durable construction
Compatibility with different rock types and a wide range of drilling machines
Full integration with Umbrella (Canopy) Arch Systems
