Tapered Rock Drilling Tools 4° 46mmTaper Button Drill Bit for Drifting / Tunneling
Products Description
Tapered equipment affords drillers the ability to change drilling bits whilst still using the same drilling rod. Drillers choose
tapered chisel bits if the goal is to minimize hole deviation in small hole range drilling. Different taper sizes have different
characteristics when it comes to the “knock-off” index – the smaller angle will prevent the bit from spinning. Used in drifting and tunneling.
| Tapered Button Bit , 7 ° , 11° , 12° | ||||||
| Bit Dia. | Buttons and Size (mm) | Flushing Hole | Weight | |||
| mm | Front | Gauge | Front | Side | kg | |
| 1 | 32 | 1x8 | 3x8 | 1 | 1 | 0.24 |
| 2 | 33 | 2x7 | 5x7 | 2 | 1 | 0.26 |
| 3 | 34 | 2x7 | 4x7 | 1 | 1 | 0.29 |
| 4 | 35 | 2x7 | 5x8 | 1 | 1 | 0.33 |
| 5 | 36 | 2x7 | 5x8 | 1 | 1 | 0.37 |
| 6 | 38 | 1x8 | 3x9 | 1 | 1 | 0.37 |
| 7 | 40 | 1x8 | 3x9 | 1 | 1 | 0.38 |
| 8 | 41 | 2x7 | 5x9 | 1 | 1 | 0.42 |
| 9 | 42 | 2x8 | 5x9 | 1 | 1 | 0.43 |
Features:
1. Tapered button bits connect with tapered drill rod for drilling holes
2. Stale and mature welding technology ensure good quality of bits
3. Accurate dimension of taper degree perfectly matches the rods
4. Work reliable and very cost-effective
Applications:
• Underground mining
• Dimensional Stone Industry
• Tunneling,quarrying
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.



