7/11/12 Degree Tungsten Carbide Tapered Button Drill Bit For Rock / Mining , ISO apporoved
7/11/12 Degree Tungsten Carbide Tapered Button Drill Bit For Rock and Mining Coal Drilling
Describtion
1. Tapered button bits connect with tapered drill rod perfectly for drilling holes
2. Stable and mature welding technology ensure high quality of bits
3. Accurate dimension of taper degree perfectly matches the rods
4. work reliable and very cost-effective
5. High grade tungsten carbide inserts
6. Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment
Product Technical Reference
| 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 |
The Insert type of the Button Bit
Spherical Button Characteristics:
• Universal button
• Good wear resistance
• Best suited for hard ground
• 27000-48000PSI(180 to 320Mpa)
• Suited for abrasive to very abrasive drilling conditions
Ballistic Button Characteristics:
• Fast Penetration
• Best suited for soft rock
• 10000-20000PSI(70 to 140Mpa)
• Suited for non-abrasive drilling conditions
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