Tunneling Drill Bit Shank
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: Based on Customer requirements Material: Tungsten carbide and high strength alloy steel Processing: CNC milling and proprietary heat treatment process Type: R28 Pilot Adapter 6 Applications • Underground mining •
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: Based on Customer requirements
Material: Tungsten carbide and high strength alloy steel
Processing: CNC milling and proprietary heat treatment process
Type: R28 Pilot Adapter 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
| Part Number | Bit Diameter (mm) | Bit Diameter (inch) | Tip Size (W x H, mm) |
| 4148300458 | 26 | 1 | 12x8 |
2
| Product Code and Brief Description | Angle | Front Flushing Holes | Side Flushing Holes |
Weight (kg) |
| PA126-6D-R28, R28 Pilot Adapter 6° | - | - | - | 1.5 |
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