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Help CenterHigh Speed R38 Button Drill Bit High Strength Alloy Steel Drilling Bit
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Description
This type of bit is well known for its wear resistance and high speed drilling on soft to medium-hard rock formations (between 70 Mpa to 180 Mpa compressive strength). Featuring ballistic tungsten carbide inserts that is known to have high penetration rate, but has weak configuration against carbide fracture.
• Widely used drifting and tunneling
• Bit face design is ideal for medium-hard to hard abrasive rock
Color: Green or Based on Customer requirements
Material: Tungsten carbide and high strength alloy steel
Processing: CNC milling and proprietary heat treatment process
Type: R38 Button Bit Ballistic 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
<
| Part Number | Bit Diameter (mm) | Bit Diameter (inch) |
Front Buttons (No. x mm) |
Gauge Buttons (No. x mm) |
| 4148300657 | 64 | 2 1/2 | 3x11 | 6x12 |
| 4148300658 | 70 | 2 3/4 | 4x11 | 8x11 |
| 4148300659 | 70 | 2 3/4 | 4x10, 1x10 | 8x11 |
| 4148300660 | 76 | 3 | 4x11 | 8x11 |
| 4148300661 | 76 | 3 | 3x11, 1x11 | 6x12 |
| 4148300662 | 76 | 3 | 4x11, 1x11 | 8x12 |
| 4148300663 | 89 | 3 1/2 | 5x12 | 8x12 |
| 4148300664 | 89 | 3 1/2 | 4x13, 1x13 | 8x13 |
2
<
| Product Code and Brief Description | Angle |
Front Flushing Holes |
Side Flushing Holes |
Weight (kg) |
| B964-R38-B, R38 Button Bit, Ballistic Buttons | 35° | 3 | - | 1.8 |
| B1270-R38-B, R38 Button Bit, Ballistic Buttons | 40° | 2 | - | 1.9 |
| B1370-R38-B, R38 Button Bit, Ballistic Buttons | 30° | 4 | - | 1.9 |
| B1276-R38-B, R38 Button Bit, Ballistic Buttons | 40° | 2 | - | 2.4 |
| B1076-R38-B, R38 Button Bit, Ballistic Buttons | 35° | 3 | 1 | 2.6 |
| B1376-R38-B, R38 Button Bit, Ballistic Buttons | 35° | 4 | - | 2.6 |
| B1389-R38-B-1, R38 Button Bit, Ballistic Buttons | 35° | 2 | - | 3.3 |
| B1389-R38-B-2, R38 Button Bit, Ballistic Buttons | 35° | 4 | - | 3.3 |
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