Rock Drilling With High Grade YK05 Tungsten Carbide R28 Thread
Button Bits
Describtion
R28 Button Bit is well known for its high wear resistance on
medium-hard to hard abrasive rock formations (between 200 Mpa to
260 Mpa compressive strength). Featuring spherical tungsten carbide
inserts that is known to have strong configuration against carbide
fracture.
1. High wear resistance
2. Tungsten carbide
3. 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: R25 Button Bit Short Skirt Spherical Buttons
Specifications
| 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 |
What is the advantage of our Button Bit ?
1. Material: 100% virgin raw material with submicron grain size;
2. Grade: Various grades for choice;
3. Advanced production equipments and testing equipments
4. Precision Ground and polished;
5. High wear resistance,high hardness and impact toughness;
6. Samples & small orders are acceptable.
What is the Bit Shape Selection of our Button Bit?
Bit Face Shape | Application |
Drop Center Bit | For high penetration rates in soft to medium hard and fissured rock
formations. Low to medium air pressures. Maximum hole deviation
control. |
Concave Face | The all-round application bit face specifically for medium hard and
homogenerous rock formations. Good hole deviation control and good
flushing capacity. |
Convex Face | For high penetration rates in soft to medium-hard with low to
medium air pressures. It is the most resistance to steel wash, and
may reduce the load and wear on the gauge buttons, but poor hole
deviation control. |
Double Gauge Face | This kind of face shape is suitable for fast penetration rates in
medium to hard rock formations. Designed for high air pressures and
good resistance to steel wash step gauge bit. |
Flat Face Bit | This kind of face shape is suitable for hard to very hard and
abrasive rock formations in applications with high air pressures.
Good penetration rates an resistance to steel wash. |
More Products:
Application:
Our Services
KSQ Technologies (Beijing) Co. Ltd. is a company that shall cater
to the needs of the construction and mining industries, with
consideration on providing solutions to the following unique
problems:
Hazardous environment
Acts, regulations, and other government guidelines that has to be
followed
Significant differences in the way people work, mostly due to
physical constraints
Avoiding downtime on major equipment which can cost tens of
thousands of dollars per hour. The best solution with the most
reasonable cost is a significant driver
Contact Person: Tina Yan
Mobile/Whatsapp: +86-150-3576-8372
Skype: myqueen323
