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Hex22mm / Hex25mm Rock Tapered Drill Rod
BESTLINK
Tapered equipment affords drillers the ability to change drilling bits whilst still using the same drilling rod. Different taper sizes have different characteristics when it comes to the “knock-off” index – the smaller angle will prevent the bit from spinning.
• Suitable for small hole range
• Widely used in Dimensional Stone Quarrying Industry
• Widely used in Underground Mining Industry
Competitive Advantage
High strength chromium-molybdenum steel with high fatigue strength and excellent wear resistance
Specifications of tapered drill rod:
| Model | Taper Degree | Drilling Rod Length | Shank Size |
| Hex.19mm | 4.46, 6, 7, 11 and 12 | 0.4m-4.0m | 83mm,108mm |
| Hex.22mm | 4.46, 6, 7, 11 and 12 | 0.4m-4.8m | 108mm |
| Hex.25mm | 4.46, 6, 7, 11 and 12 | 0.8m-4.8m | 108mm,159mm |
Tapered equipment affords drillers the ability to change drilling bits whilst still using the same drilling rod. Different taper sizes have different characteristics when it comes to the “knock-off” index – the smaller angle will prevent the bit from spinning.
• Suitable for small hole range
• Widely used in Dimensional Stone Quarrying Industry
• Widely used in Underground Mining Industry
Competitive Advantage
High strength chromium-molybdenum steel with high fatigue strength and excellent wear resistance
Specifications of tapered drill rod:
| Model | Taper Degree | Drilling Rod Length | Shank Size |
| Hex.19mm | 4.46, 6, 7, 11 and 12 | 0.4m-4.0m | 83mm,108mm |
| Hex.22mm | 4.46, 6, 7, 11 and 12 | 0.4m-4.8m | 108mm |
| Hex.25mm | 4.46, 6, 7, 11 and 12 | 0.8m-4.8m | 108mm,159mm |
