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Help Center3" 2" R32 Button Drill Bit Spherical CNC Drill Bits For Tunneling
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Description
This type of bit is a high speed drilling bit for soft to medium rock formations (between 50 Mpa to 150 Mpa compressive strength). Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture.
• Widely used drifting and tunneling
• Bit face design is ideal for soft to medium rock formations
Color: Green or Based on Customer requirements
Material: Tungsten carbide and high strength alloy steel
Processing: CNC milling and proprietary heat treatment process
Type: R32 Button Bit Spherical Buttons
Applications
• Underground mining
• Tunneling
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
specification
1
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| Part Number | Bit Diameter (mm) | Bit Diameter (inch) |
Front Buttons (No. x mm) |
Gauge Buttons (No. x mm) |
| 4148300487 | 41 | 1 5/8 | 2x9 | 4x9 |
| 4148300488 | 41 | 1 5/8 | 2x8 | 5x9 |
| 4148300489 | 43 | 1 5/7 | 2x9 | 5x9 |
| 4148300490 | 43 | 1 5/7 | 2x9 | 5x10 |
| 4148300491 | 43 | 1 5/7 | 2x9 | 6x9 |
| 4148300492 | 45 | 1 7/9 | 2x9 | 5x11 |
| 4148300493 | 45 | 1 7/9 | 2x9 | 6x10 |
| 4148300494 | 45 | 1 7/9 | 3x8 | 6x10 |
| 4148300495 | 48 | 1 8/9 | 2x9 | 5x11 |
| 4148300496 | 48 | 1 8/9 | 2x9 | 6x10 |
| 4148300497 | 48 | 1 8/9 | 3x8 | 6x10 |
| 4148300498 | 48 | 1 8/9 | 3x9 | 6x10 |
| 4148300499 | 51 | 2 | 2x10 | 5x11 |
| 4148300500 | 51 | 2 | 2x10 | 6x10 |
| 4148300501 | 51 | 2 | 3x9 | 6x10 |
| 4148300502 | 57 | 2 1/4 | 3x9 | 6x11 |
| 4148300503 | 64 | 2 1/2 | 3x10, 1x10 | 6x11 |
| 4148300504 | 64 | 2 1/2 | 4x10 | 8x10 |
| 4148300505 | 76 | 3 | 4x11 | 8x11 |
| 4148300592 | 48 | 1 8/9 | 2x9 | 5x11 |
| 4148300593 | 48 | 1 8/9 | 3x8 | 6x10 |
| 4148300594 | 51 | 2 | 2x10 | 5x11 |
| 4148300597 | 57 | 2 1/4 | 3x10 | 6x11 |
| 4148300598 | 64 | 2 1/2 | 3x11 | 6x12 |
| 4148300601 | 70 | 2 3/4 | 4x11 | 8x11 |
| 4148300602 | 76 | 3 | 4x11, 1x11 | 8x11 |
2
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| Product Code and Brief Description | Angle |
Front Flushing Holes |
Side Flushing Holes |
Weight (kg) |
| B641-R32-S, R32 Button Bit, Spherical Buttons | 35° | 1 | 1 | 0.6 |
| B741-R32-S, R32 Button Bit, Spherical Buttons | 35° | 1 | 1 | 0.7 |
| B743-R32-S-1, R32 Button Bit, Spherical Buttons | 35° | 1 | 2 | 0.7 |
| B743-R32-S-2, R32 Button Bit, Spherical Buttons | 35° | 1 | 1 | 0.7 |
| B843-R32-S, R32 Button Bit, Spherical Buttons | 40° | 2 | - | 0.7 |
| B745-R32-S, R32 Button Bit, Spherical Buttons | 30° | 1 | 1 | 0.8 |
| B845-R32 |
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