64mm 76mm R28 Reaming Drill Bit Stone Drill Bits CNC Milling
| Place of Origin: | Zhejiang |
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Company Profile
| Location: | Beijing, China (Mainland) |
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| Business Type: | Manufacturer |
| Main Products: | Rock Drilling Tools, Button Drill Bit, Cross Bits |
Product Detail
| Model No.: | 4148300452-4148300457 |
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Product Description
Description
This type of bit is used for making large cut holes in drifting and tunneling. A smaller hole is first drilled and then reamed to the final size in combination with a pilot adapter.
• Widely used in drifting and tunneling
• R28 thread system
Color: Green,Blue or Based on Customer requirements
Material: Tungsten carbide and high strength alloy steel
Processing: CNC milling and proprietary heat treatment process
Type: R28 Reaming Bit 6
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) |
| 4148300452 | 64 | 2 1/2 | 2x10 | 8x9 |
| 4148300453 | 64 | 2 1/2 | 4x8 | 8x9 |
| 4148300454 | 76 | 3 | 2x11 | 8x11 |
| 4148300455 | 76 | 3 | 4x10 | 8x10 |
| 4148300456 | 89 | 3 1/2 | 4x11 | 8x11 |
| 4148300457 | 89 | 3 1/2 | 4x10 | 8x10 |
2
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| Product Code and Brief Description |
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