T51 RETRAC BUTTON BIT Spherical Ballistic Retractable Drill Bit T51 Threaded Rock Drilling Tools
Specification:
| Drill Bit | Diameter | No x Buttons Diameter | Flushing Hole | Weight, kg |
| mm | inch | Front | Gauge | Angle | Front | Side |
| Retrac Button Bit T51 | Spherical |
| 89 | 3 ½ | 4 x 13 | 8 x 13 | 40 | 2 | - | 5.3 |
| 89 | 3 ½ | 5 x 13 | 8 x 13 | 35 | 2 | 1 | 5.3 |
| 89 | 3 ½ | 3 x 11, 2 x 11 | 6 x 13 | 35 | 4 | - | 5.3 |
| 89 | 3 ½ | 4 x 11, 1 x 11 | 8 x 13 | 35 | 4 | - | 5.3 |
| 89 | 3 ½ | 4 x 13, 1 x 13 | 8 x 13 | 35 | 4 | - | 5.3 |
| 102 | 4 | 4 x 14 | 8 x 14 | 40 | 2 | - | 7.3 |
| 102 | 4 | 6 x 13 | 8 x 16 | 35 | 2 | 1 | 7.3 |
| 102 | 4 | 4 x 13, 1x 13 | 8 x 14 | 35 | 4 | - | 7.3 |
| 102 | 4 | 4 x 13, 2x 13 | 8 x 13 | 35 | 4 | 1 | 7.3 |
| 102 | 4 | 4 x 13, 1x 13 | 8 x 14 | 35 | 4 | 1 | 7.3 |
| 115 | 4 ½ | 6 x 14 | 8 x 14 | 35 | 2 | - | 9.8 |
| 115 | 4 ½ | 6 x 14 | 8 x 16 | 35 | 2 | - | 9.8 |
| 115 | 4 ½ | 4 x 13, 2 x 13 | 8 x 14 | 35 | 4 | - | 9.8 |
| 115 | 4 ½ | 4 x 13, 3 x 13 | 8 x 14 | 35 | 4 | - | 9.8 |
| 115 | 4 ½ | 4 x 14, 2 x 14 | 8 x 16 | 35 | 4 | - | 9.8 |
| 127 | 5 | 8 x 14 | 8 x 16 | 35 | 2 | 1 | 12.0 |
| 127 | 5 | 4 x 16, 2 x 13 | 8 x 16 | 35 | 4 | - | 12.0 |
| 127 | 5 | 4 x 14, 3 x 14 | 8 x 14 | 35 | 4 | - | 12.0 |
This type of bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations (between 200 Mpa to 260 Mpa compressive strength). Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture. Recommended for eliminating hole deviation. Used in benching and long hole drilling.
Ballistic:
| Drill Bit | Diameter | No x Buttons Diameter | Flushing Hole | Weight, kg |
| mm | inch | Front | Gauge | Angle | Front | Side |
| Retrac Button Bit T51 | Ballistic |
| 89 | 3 ½ | 5 x 13 | 8 x 13 | 35 | 2 | 1 | 5.3 |
| 89 | 3 ½ | 3 x 11, 2 x 11 | 6 x 13 | 35 | 4 | - | 5.3 |
| 89 | 3 ½ | 4 x 11, 1 x 11 | 8 x 13 | 35 | 4 | - | 5.3 |
| 89 | 3 ½ | 4 x 13, 1 x 13 | 8 x 13 | 35 | 4 | - | 5.3 |
| 102 | 4 | 4 x 14 | 8 x 14 | 40 | 2 | - | 7.3 |
| 102 | 4 | 6 x 13 | 8 x 16 | 35 | 2 | 1 | 7.3 |
| 102 | 4 | 4 x 13, 1x 13 | 8 x 14 | 35 | 4 | - | 7.3 |
| 102 | 4 | 4 x 13, 2x 13 | 8 x 13 | 35 | 4 | 1 | 7.3 |
| 102 | 4 | 4 x 13, 1x 13 | 8 x 14 | 35 | 4 | 1 | 7.3 |
| 115 | 4 ½ | 6 x 14 | 8 x 16 | 35 | 2 | - | 9.8 |
| 115 | 4 ½ | 4 x 13, 2 x 13 | 8 x 14 | 35 | 4 | - | 9.8 |
| 115 | 4 ½ | 4 x 13, 3 x 13 | 8 x 14 | 35 | 4 | - | 9.8 |
| 115 | 4 ½ | 4 x 14, 2 x 14 | 8 x 16 | 35 | 4 | - | 9.8 |
This type of bit is well known for its wear resistance on soft to medium-hard rock formations (between 55 Mpa to 165 Mpa compressive strength). Featuring ballistic tungsten carbide inserts that is known to have high penetration rate, but has weak configuration against carbide fracture. Used in benching and long hole drilling.
Threaded Rock Drilling Tools T51
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
Application:
1. Underground mining
2. Drifting anf Tunneling
3. In granite and marble quarry
4. Gold Mine
5. In benching and long hole drilling
Package: Wooden Box; also we can follow customers' requirements.
Delivery time is around 15-25 days.
MIROC® Production:
Integral Rods
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Reaming Tools
Shank Rods
Coupling Sleeves
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers
Company Information:
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.
KSQ Technologies (Beijing) Co. Ltd.
Elisa Zarovkina (Елизавета)
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