BR DTH Button Bit
Gdrills is able to supply BR2, BR3 down hole hammer bit. These bits are able to drill various rocks, like carbonate rock, limestone, chalk, clay rock, silt stone, sand stone and etc.
General Introduction
BR DTH button bit is reffered as down the hole bit with a "BR" shank design. It is suitable for drilling holes around 3 inch, or 4 inch.
BR Bit Shank Design
|
Model |
Picture |
Length |
Spline |
|
BR2 |
|
165mm |
6 |
|
BR3 |
|
165mm |
6 |
BR Bit face Design
|
Item |
Bit Face Picture |
Descriptions |
|
Flat face |
|
The bit features a flat face with a smooth, even surface. It's ideal for soft to medium rock formations and offers advantages in precision drilling. |
|
Convex face |
|
The bit has a slightly convex, outward-curved design. It is well-suited for abrasive or exceptionally hard rock formations and excels in large-scale mining or construction projects. |
|
Concave face |
|
The bit features a slightly concave, inward-curved design. It's ideal for applications where a high rate of penetration (ROP) is essential and offers enhanced drilling efficiency. |
|
Drop center |
|
The bit has a depressed center, with the surrounding area of the face raised. This design offers the advantage of fast penetration, particularly in softer rock formations. |
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Specifications
BR2 DTH Bits
| Face | Diameter | Part No. | T.C Buttons(mm) | Angle | Flushing Holes Dia.(mm) | Weight(kg) | ||||
| Gauge | Front | |||||||||
| mm | inch | Flat | Convex | Concave | ||||||
| Flat | 76 | 2.99 | GBR2-76FF6 | 6×12 | 5×10 | / | / | 38° | 2×12 | 2.3 |
| Convex | 76 | 2.99 | GBR2-76CV6 | 6×13 | 2×10 | 2×11 | / | 38° | 2×12 | 2.3 |
| Convex | 80 | 3.15 | GBR2-80CV6 | 6×13 | 2×10 | 3×11 | / | 38° | 2×12 | 2.4 |
| Convex | 90 | 3.54 | GBR2-90CV6 | 6×13 | 2×11 | 4×11 | / | 38° | 2×12 | 2.6 |
| Flat | 90 | 3.54 | GBR2-90FF6 | 6×13 | 6×10 | / | / | 38° | 2×12 | 2.6 |
| Concave | 95 | 3.74 | GBR2-95CC8 | 8×12 | 4×22 | / | / | 38° | 2×12 | 2.8 |
BR2 DTH Bits
| Face | Diameter | Part No. | T.C Buttons(mm) | Angle | Flushing Holes Dia.(mm) | Weight(kg) | ||||
| Gauge | Front | |||||||||
| mm | inch | Flat | Convex | Concave | ||||||
| Convex | 90 | 3.54 | GBR3-90CV6 | 6×14 | 2×12 | 2×13 | / | 38° | 2×14 | 3.4 |
| Convex | 90 | 3.54 | GBR3-90FF6 | 6×14 | 4×12 | / | / | 38° | 2×14 | 3.4 |
| Convex | 95 | 3.74 | GBR3-95CV6 | 6×14 | 2×13 | 2×13 | / | 38° | 2×14 | 3.5 |
| Convex | 100 | 3.94 | GBR3-100CV6 | 6×14 | 2×13 | 3×13 | / | 38° | 2×14 | 3.7 |
| Convex | 105 | 4.13 | GBR3-105CV6 | 6×14 | 2×13 | 3×13 | / | 38° | 2×14 | 3.9 |
| Flat | 105 | 4.13 | GBR3-105FF8 | 8×13 | 6×12 | / | / | 38° | 2×14 | 3.9 |
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