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| Place of Origin: | China |
| Brand Name: | MIROC R28 Button Bit |
| Model Number: | R28 Thread Button Bit |
| Minimum Order Quantity: | 10 Pieces Button Bit |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Carton Box or Wooden Box |
| Delivery Time: | 25 days |
| Supply Ability: | 20000 pieces per month |
| Product: | R28 Button Bit | Bit Type: | Button Bit / Reaming Bit / Cross Bit |
|---|---|---|---|
| Drilling: | For Small Hole Rock Drilling | Face Design: | Flat Face / Drop Center |
| Diameter: | 38mm 48mm 64mm 76mm | Steel: | High Strength Chromium-molybdenum Steel |
| High Light: | industrial drill bits,hardened steel drill bits |
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Button Dril Bit R28 Thread With High Grade YK05 Tungsten Carbide
Thread: R28
Color: Green or Based on Customer requirements
Type: R28 Button Bit
Widely used drifting and tunneling
R28 Thread Button Bit Specification
| THREADED ROCK DRILLING TOOLS - R28 Drill Bit | ||||||||
| Diameter | Buttons and Size (mm) | Flushing hole | Weight | Part Number | ||||
| mm | inch | Front | Gauge | Angle | Front | Side | kg | |
| R28 Button Bit | ||||||||
| Spherical | ||||||||
| 37 | 1 4/9 | 2×7 | 5×9 | 30° | 1 | 1 | 0.5 | 4148300436 |
| 38 | 1 1/2 | 2×8 | 4×9 | 30° | 1 | 2 | 0.6 | 4148300437 |
| 38 | 1 1/2 | 2×7 | 5×9 | 30° | 1 | 1 | 0.6 | 4148300438 |
| 41 | 1 5/8 | 2×8 | 5×9 | 35° | 1 | 1 | 0.7 | 4148300439 |
| 43 | 1 5/7 | 2×9 | 5×9 | 35° | 1 | 2 | 0.8 | 4148300440 |
| 45 | 1 7/9 | 2×9 | 5×10 | 30° | 1 | 2 | 0.9 | 4148300441 |
| 45 | 1 7/9 | 3×8 | 6×9 | 35° | 1 | 3 | 0.9 | 4148300442 |
| Ballistic | ||||||||
| 37 | 1 4/9 | 2×7 | 5×9 | 30° | 1 | 1 | 0.5 | 4148300443 |
| 38 | 1 1/2 | 2×8 | 4×9 | 30° | 1 | 2 | 0.6 | 4148300444 |
| 38 | 1 1/2 | 2×7 | 5×9 | 30° | 1 | 1 | 0.6 | 4148300445 |
| 41 | 1 5/8 | 2×8 | 5×9 | 35° | 1 | 1 | 0.7 | 4148300446 |
| 43 | 1 5/7 | 2×9 | 5×9 | 35° | 1 | 2 | 0.8 | 4148300447 |
| 45 | 1 7/9 | 2×9 | 5×10 | 30° | 1 | 2 | 0.9 | 4148300448 |
| 45 | 1 7/9 | 3×8 | 6×9 | 35° | 1 | 3 | 0.9 | 4148300449 |
| 48 | 1 8/9 | 2×9 | 5×11 | 30° | 1 | 2 | 1.0 | 4148300450 |
| 48 | 1 8/9 | 3×8 | 6×9 | 35° | 1 | 3 | 1.0 | 4148300451 |
| R28 Reaming Bit 6° | ||||||||
| 64 | 2 1/2 | 2×10 | 8×9 | 35° | - | - | 0.8 | 4148300452 |
| 64 | 2 1/2 | 4×8 | 8×9 | 25° | - | - | 0.8 | 4148300453 |
| 76 | 3 | 2×11 | 8×11 | 35° | - | - | 1.2 | 4148300454 |
| 76 | 3 | 4×10 | 8×10 | 30° | - | - | 1.2 | 4148300455 |
| 89 | 3 1/2 | 4×11 | 8×11 | 35° | - | - | 1.7 | 4148300456 |
| 89 | 3 1/2 | 4×10 | 8×10 | 30° | - | - | 1.7 | 4148300457 |
| R28 Pilot Adapter 6° | ||||||||
| 26 | 3 1/2 | 12×8 | - | - | - | 1.5 | 4148300458 | |
| R28 Cross type bit | ||||||||
| 38 | 1 1/2 | 14×8 | - | 1 | 2 | 0.6 | 4148300459 | |
| 41 | 1 5/8 | 14×8 | - | 1 | 4 | 0.7 | 4148300460 | |
| 43 | 1 5/7 | 14×8 | - | 1 | 4 | 0.7 | 4148300461 | |
| 45 | 1 7/9 | 14×8 | - | 1 | 4 | 0.9 | 4148300462 | |
| 51 | 2 | 14×8 | - | 1 | 4 | 1.1 | 4148300463 | |
1. Material Cutting
2. Forging
3. Numerical Control Operation
4. Through Rough-Finish Turning/Spines Milling
5. Heat Treatment
6. Times Heat Treatments
7. Button Fitting
8. Finish
9. Product Test
10. Painting
11. Packing
12. Transportation
Contact Person: Mr. Yingkai Zhang
Tel: +86 18501231988
