Composite drill bit (without core, three wing, four wing)

Diamond Composite Disc (PDC) drill bit, with diamond composite disc as the main cutting element, uses the principle of scraping and shearing to break rock layers, suitable for drilling in soft to medium hard formations,
And it has better advantages in overcoming incomplete formation drilling. Diamond composite drill bits have the advantages of high lifespan, high timeliness, and high cost-effectiveness by fully utilizing the high wear resistance and high impact resistance of diamond composite.
Diamond composite drill bits can be divided into coring drill bits and non coring drill bits (three wing, four wing concave diamond composite drill bits);
Diamond composite core drills come in both rope drills (without core tubes) and regular drills.
Diamond composite drill bits can be divided into ordinary composite drill bits, reinforced composite drill bits (or spherical/blade type), super strong composite drill bits, and helmet toothed composite drill bits according to the type of composite.
This type of drill bit has good stability, long service life, high drilling efficiency, low-pressure and medium speed drilling, good diameter retention effect, wide range of applications, and superior cost-effectiveness. It can be widely used in geological exploration
Rock drilling and rock core sampling for coal mining, water conservancy and hydropower construction (well development), geothermal boreholes, highways, railways, and construction projects.

We can provide various conventional diamond composite drill bits according to customer requirements and geological conditions to overcome special geological formations with specialized diamond composite drill bits.
Function and Features:
1. Application: Soft to medium hard formations, mudstone, sandstone, and interbedded limestone, reinforced and super strong composite drill bits can be applied to ultra hard formations. Either a motor or a rotary drill can be used. Special design makes it
The stability performance of the drilling tools in Xiangding is excellent.
2. Simple motor guidance: This drill bit utilizes a special cutting structure and straight blade design to ensure smooth operation and minimal tool face swing when sliding and drilling. And it can maintain a high mechanical drilling speed during rotary drilling.
Thus, these design combinations ensure unparalleled usability.
3. Highly smoothed cutting teeth: Highly smoothed cutting teeth can reduce frictional resistance during cutting, quickly remove debris, significantly improve cutting efficiency, and thus increase ROP.
4. Stability features: Design features with different levels of stability keep the drill bit in a stable state for most of the time when working underground, suppressing vibration damage to the drill bit caused by BHA, operation, and/or formation

PDC drill bits also have:
1. Long lifespan of drill bits: mainly using composite cutting teeth, its service life is more than 10 times that of hard alloy and 4-5 times that of ordinary diamond drill bits;
2. High drilling efficiency: the amount of diamond exposed is large (almost all of the composite polycrystalline layer is exposed), and the drill bit can always remain sharp, thus greatly improving the drilling speed;
3. Low pressure and low-speed drilling: The drill bit breaks rocks by scraping and shearing, and its drilling pressure is only about one-third of that of the same diameter diamond impregnated drill bit;
4. Good diameter retention effect: The composite drill bit can be embedded with diamond polycrystalline diameter retention inside and outside, with strong wear resistance and good diameter retention performance, which can efficiently utilize the cutting teeth
5. Widely applicable: Practice has proven that this drill bit is suitable for drilling in soft, medium hard (rock formations with drillability below level 9) formations such as carbonate rocks, limestone, chalk, clay rocks, siltstone, sandstone, etc. Compared with general drill bits,
Especially when drilling into rock formations at levels 6-9, the effect is particularly significant;
6. Due to its fast drilling speed and long lifespan, it has fewer trips and significantly reduces drilling costs, offering superior cost-effectiveness.
Specification: Core drill bit diameter: Φ 59, 75, 91, 110, 130, 150, 171, 220, 245, 275, 325
Diamond composite non coring drill bits (three wing, four wing drill bits) with diameters of Φ 59, 65, 77, 94, 113, 133, 152, 171, 200, 220 can be used with 50 drill rods, 42 drill rods, or 60 drill rods.
The diameters of the above drill bits are all national standard interfaces. If special interfaces or diameters are required, please contact our factory for customization.