Air Core Drill Bits using Premium Tungsten Carbide for epiroc RC 50 hammer golden drilling
Air Core Bit
Air Core Drill Bits – Premium Tungsten Carbide
Roschen's premium air core drill bits last longer and drill faster, giving you cleaner samples and higher rig productivity.
Choose Harlsan Air Core Drill Bits:
● Heavy‑duty tungsten carbide blades withstand shocks of high‑speed RC drilling
● Proven 20‑year design – in over 40 countries
● Cleaner sample return for better grade‑control decisions
● Exceptional quality with ISO‑accredited manufacturing
● Global shipping every day
● Custom threads & sizes** shipped in days, not weeks
High Strength Air Core Drill Bits
BUILT TO LAST
Drill more meters every day with Harlsan air core drill bits, in any ground conditions.
1. Excellent Sample Return
2. Tungstens Survive Tough Drilling Conditions
3. Modifications to Suit Your Needs
4. Wide Stock Range for Immediate Supply
5. Proven Design with 20 Years in The Field
| Air Core Bit Basic Info. | |
| Model NO. | 3", 3 1/2", 4", 4 1/2" etc. |
| Color | as Per Request |
| Cutting Media | Tc or PDC |
| Formation | Soft, Medium Hard Formation |
| Transport Package | Cartons or Ply-Wooden Cases |
| Specification | 3", 3 1/2", 4", 4 1/2" etc. |
| Trademark | ROSCHEN |
| HS Code | 82071910 |
| Production Capacity | 1000 Per Month |
Product Parameters
| 3" | Remet or other threads as per request |
| 3 1/2" | Remet or other threads as per request |
| 4" | Remet or other threads as per request |
| 41/2" | Remet or other threads as per request |
| 4 3/4" | Remet or other threads as per request |
| Note | |
| Special sizes can also be made as per request. | |
| Any other thread is available against requirements. | |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.