7 / 11 / 12 Degree Tungsten Carbide Button Drill Bit , Tapered Seven Button Bit
Tapered equipment affords drillers the ability to change drilling bits whilst still using the same drilling rod. Drillers choose tapered button bits for faster drilling penetration rate. 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
| Tapered drilling tools Types | Diameter (mm) | Taper Angle (Degree) | Skirt | Weight (kg) |
| Tapered chisel bits | 20-60mm | 4°,6°,7°,11°,12° | Normal, Length | 0.15 - 0.45 |
| Tapered cross bits | 32-60mm | Normal, Length | 0.18 - 0.7 |
| Tapered button bits | 30-55mm | Normal, Length | 0.2 - 0.5 |
Button bit and Insert types
Spherical Button Characteristics:
1.Universal button
2.Good wear resistance
3.Best suited for hard ground
4.27000-48000PSI(180 to 320Mpa)
5.Suited for abrasive to very abrasive drilling conditions
Ballistic Button Characteristics:
1.Fast Penetration
2.Best suited for soft rock
3.10000-20000PSI(70 to 140Mpa)
4.Suited for non-abrasive drilling conditions
Feature of Taper Button Bit
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 of rock drilling tools
• Underground mining
• Tunneling,quarrying
Competitive Advantage
• High grade tungsten carbide inserts
• Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment
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7 / 11 / 12 Degree Tungsten Carbide Button Drill Bit , Tapered Seven Button Bit Images
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