7,11,12 Degrees 40/42mm Tapered Button Bit Used Drifting And Tunneling
Taper Button bits
MirocTapered 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 smaller angle will prevent the bit from spinning.
Taper button bit -7, 11,12 degrees, Short skirt and long skirt
| DRILL BIT | Diameter, mm | NO x button diameter | Flushing Hole | Weight, kg |
| Front | Gauge | Angle, ° | Front | Side |
| Button Bit, short skirt | 32 | 1 x 8 | 3 x 8 | 35 | 1 | 1 | 0.24 |
| 33 | 2 x 7 | 5 x 7 | 35 | 2 | 1 | 0.26 |
| 34 | 2 x 7 | 4 x 7 | 40 | 1 | 1 | 0.29 |
| 35 | 2 x 7 | 5 x 8 | 35 | 1 | 1 | 0.33 |
| 36 | 1 x 8 | 3 x 9 | 40 | 1 | 1 | 0.37 |
| 36 | 2 x 7 | 5 x 8 | 35 | 1 | 1 | 0.37 |
| 38 | 1 x 8 | 3 x 9 | 35 | 1 | 1 | 0.38 |
| 38 | 2 x 7 | 5 x 8 | 35 | 1 | 1 | 0.38 |
| 38 | 2 x 7 | 5 x 9 | 40 | 2 | 1 | 0.38 |
| 40 | 1 x 8 | 3 x 9 | 30 | 1 | 1 | 0.40 |
| 40 | 1 x 9 | 3 x 10 | 30 | 1 | 1 | 0.40 |
| 40 | 1 x 9 | 3 x 9 | 35 | 1 | 1 | 0.40 |
| 40 | 2 x 7 | 5 x 9 | 35 | 1 | 1 | 0.40 |
| 42 | 1 x 8 | 3 x 9 | 30 | 1 | 1 | 0.43 |
| 42 | 1 x 9 | 3 x 10 | 30 | 1 | 1 | 0.43 |
| 42 | 1 x 9 | 3 x 9 | 35 | 1 | 1 | 0.43 |
| 42 | 2 x 8 | 5 x 9 | 35 | 1 | 1 | 0.43 |
| Button bit, long skirt | 32 | 2 x 7 | 5 x 7 | 35 | 1 | 1 | 0.30 |
| 33 | 2 x 7 | 5 x 7 | 35 | 1 | 1 | 0.31 |
| 35 | 2 x 7 | 5 x 8 | 35 | 1 | 1 | 0.36 |
| 38 | 2 x 7 | 5 x 9 | 35 | 1 | 1 | 0.41 |
| 41 | 2 x 7 | 5 x 9 | 35 | 1 | 1 | 0.42 |
We can design and manufacture according to customers’ requirements of the bit diameter, number of air holes and carbide button shape.
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
Application
Tapered drill bits are used in granite and marble quarry, gold mine, railway, dimensional stone industry, underground mining, tunnels and etc. for drilling
Pictures
Package
About US
The MIROC® Rock Drilling Tools product line by KSQ Technologies (Beijing) Co.Ltd. is the result of years of advanced engineering, precision manufacturing, and dedication to the use of high-quality materials.
MIROC® Rock Drilling Tools are used by many drilling professionals related to mining, construction, tunneling, and quarrying projects around the globe.
We take pride in being the only manufacturers in China that has a diverse line of DTH bits that range from 3"-47"(76mm~1200mm) in diameter with most the leading hammer shanks.
Made from high quality alloy steel and advanced heat-treatment, our bits are ensured extreme protection against wear and fatigue. They're also available in four different bit-head designs - Convex, Flat, Concave and Drop center face, and four different inserts-Spherical,Ballistic,Semi-ballistic,Two-Step to tackle any challenge and rock formations.
Our Service:
Compared with the oversea brands, our advantages are bellowing:
1. Our products can match over 95% against the original products
2. Price are competitive against the famous brands and best quality against the small factory
3. Our factory has been specialized in manufacturing drilling tools and spare parts for about 10 years.
4. We have advanced technology and equipment.
5. Our technician has more than 20 year’s professional working experience.
6. Rock drilling tools are exported throughout the world. Main market: South America, South Africa, Russia, Middle East and etc.
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7 11 12 Degrees 40/42mm Taper Button Bit For Drifting And Tunneling Images
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