Button Bits
Selected raw material, controled process, 100% testing, Gdrills means to provide customers with high performance button bits. Our bits have been tested well in gold mine, nickle mine, coal mine, highways, metro tunnels located in China, Europ, South America, Africa and etc.
Why Gdrills is a Reliable Button Bit Supplies
10+ years manufacturing experience in rock drilling tools
01
Strict quality inspection from raw material to finished product
02
Advanced CNC machining for precise thread matching
03
Flexible customization for different drilling conditions
04
Global export experience serving mining companies worldwide
05
Thread Types
Tapered bits （11DEG, 12 DEG, 7DEG），R25，R28，R32，T38，T45，T51，GT60，ST58 / ST68
Specification
|
Item |
Button bit |
|
Working principle |
Transmit impact energy from rock bit into rock. |
| Application | small hole drilling, production drilling, bench drilling, drifting drilling and etc |
|
Face design |
Flat face, universal face, drop center |
| Button design | Spherical button/ Ballistic button |
| Skirt design | Standard skirt |
|
Teeth material |
YK05 / Element Six tungsten carbide |
| Skirt material | 45CrNi3MoV alloy steel |
| Button insertion | Hot pressing |
|
Hardness |
HRC43-48 |
| Brand | Gdrills / customization |
| Warranty | Provided |
| Lead time | Quoted per order |
|
Colour |
Customize according to requirements |
| MOQ | Negotiable |
How to Select the Right Button Bit
Choosing the right button bit depends on several factors:
- Rock hardness (soft, medium, hard)
- Hole depth and diameter
- Drilling equipment power
- Thread type (T38, T45, T51)
Advantages of Button Bits
High-quality raw material
Our button rock drill bits are made of high-quality steel and cemented carbide as raw materials. After a special heat treatment process, the drilling rig drill bit has a long service life and can minimize the loss of impact energy during transmission.
Advanced button fixation technology
The drilling rig drill bit adopts advanced button fixation technology. The fixation force is uniform and it is not easy to lose buttons. At the same time, it can ensure the verticality of the drilling hole, so that the impact energy can be concentrated on the rock.
Advanced thread manufacturing process
Our drill button bits are with advanced thread manufacturing technology. Threads manufactured with precise tolerances enable the drill bit and the drill rod to be connected more tightly, and can transmit impact energy more effectively, while greatly reducing the risk of dents and fractures at the thread end, and improving overall production efficiency.
Excellent rock drilling bits design
Gdrills has many face designs of drill button bits suitable for different rock formations, which can meet the drilling requirements of different hardness rocks, improve drilling efficiency and reduce costs.
Strict quality control
All button drill bits for rock drilling have implemented strict quality control to ensure that each button drill bit is of high quality.
Button Bits Size
|
Button Bit |
Angle (°) |
Application | ||
| Item |
Dia mm |
Dia inch |
||
| 7° Tapered Button bit | 41 | 1.61 |
35 |
Small hole drilling |
| 43 | 1.69 | 35 | ||
| 56 | 2.20 | 35 | ||
|
11° Tapered Button bit 12° Tapered Button bit |
32 | 1.26 | 35 | Small hole drilling |
| 33 | 1.30 | 35 | ||
| 34 | 1.34 | 35 | ||
| 36 | 1.42 | 35 | ||
| 38 | 1.50 | 35 | ||
| 40 | 1.57 | 35 | ||
|
R25 Button bit R28 Button bit R32 Button bit R35 Button bit |
33 | 1.30 | 35 | Tunnelling and drifting |
| 35 | 1.38 | 35 | ||
| 37 | 1.46 | 35 | ||
| 38 | 1.50 | 35 | ||
| 41 | 1.61 | 35 | ||
| 43 | 1.69 | 35 | ||
| 45 | 1.77 | 35 | ||
| 48 | 1.89 | 35 | ||
| 51 | 2.01 | 35 | ||
|
R32 Button bit R35 Button bit T38 Button bit T45 Button bit T51 Button bit |
41 | 1.61 | 35 | Bench drilling |
| 43 | 1.69 | 35 | ||
| 45 | 1.77 | 35 | ||
| 48 | 1.89 | 35 | ||
| 51 | 2.01 | 35 | ||
| 54 | 2.13 | 35 | ||
| 57 | 2.24 | 35 | ||
| 64 | 2.52 | 35 | ||
| 76 | 2.99 | 35 | ||
| 89 | 3.50 | 35 | ||
| 102 | 4.02 | 35 | ||
| 115 | 4.53 | 35 | ||
|
GT60 Button bit ST58 Button bit ST68 Button bit
|
92 | 3.62 | 35 | Bench drilling |
| 96 | 3.78 | 35 | ||
| 102 | 4.02 | 35 | ||
| 115 | 4.53 | 35 | ||
| 127 | 5.00 | 35 | ||
| 140 | 5.51 | 35 | ||
| 152 | 5.98 | 35 | ||
Packing&Shipping
Q: Can the button bit be regrinded or repaired?
A: Yes. Button bits can be regrinded several times using a button bit grinder when the carbide buttons wear down. Regular regrinding extends the service life and maintains drilling speed.
Q: Are Gdrills button bits compatible with international brands?
A: Yes. Gdrills button bits are fully interchangeable with brands like Epiroc, Sandvik, Atlas Copco, Furukawa, and others. They meet international standards for threads, diameters, and shank connections.
Q: Can Gdrills customize button bits?
A: Absolutely. Gdrills offers OEM & ODM services — customizing diameter, thread type, face design, button shape, and color based on your project requirements or machine model.
Q: How to judge drilling problems by button bit wear condition?
A: A button bit's wear state offers important information about drilling performance:
Flat wear → Normal wear, albeit it can be a sign of slow rotation
Broken buttons → Inadequate drilling angle or excessive impact force
uneven wear → Unstable drilling or poor alignment due to
Overuse of the body → Inadequate flushing or abrasive rock
Frequent examination prolongs tool life and optimizes drilling settings.
Q: How long do button bits last?
A: Besides the material, the lifespan of button bits also depends on rock conditions, drilling parameters, and operator experience.
Q: Can I reduce drilling cost by switching suppliers?
A: Yes. Many customers reduce cost by 20–30% without sacrificing performance.