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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 |
