Starockdrill utilizes premium hexagonal steel GIII material, combined with specialized heat treatment techniques, to extend product lifespan and secure a significant market presence. Typically used for shallow boreholes under 2000mm and deep boreholes exceeding 2000mm, our tapered drilling tools offer hole diameters ranging from 23mm to 45mm.
Tapered Drill Rods Tapered Drill Rods: Enhancing Drilling Efficiency SpecificationsShank | Length (mm) | Taper degree |
Hex 22×108mm | 500-8000 | 7°, 11°, 12° |
Hex 25×108mm | 1500-4000 | 7° |
Hex 32×108mm | 1830-6100 | 7°, 12° |
The tapered drill bits are designed to perfectly match our tapered drill rods. Constructed with specialized body materials and utilizing advanced heat treatment carburization techniques, our drill bits excel in wear resistance. The alloy components incorporate top-of-the-line T6 (YK05) alloy, ensuring optimal drilling speed and meterage. Our tapered drill bits are available in chisel, cross, and button designs, tailored to different drilling environments. We use high-quality materials and strictly control heat treatment and carburization processes to meet our customers' diverse needs.
SpecificationsTapered Chisel Bit | Tapered Cross Bit | Tapered Button Bit | |
Taper degree | 7° | 7°, 11°, 12° | 7°, 11°, 12° |
Taper diameter (mm) | 23 | 23 | 22 |
Bit diameter (mm) | 26-43 | 28-51 | 28-45 |
Application | Suitable for drilling medium-hard rock and hard rock without fissures, and with rock hardness coefficient below 15 | Suitable for drilling hard rock, extreme hard rock and brock rock layers | Available in hemispherical and semi-ballistic button bits: Suitable for any rock layers except very abrasive ultra-hard rock layers |