Hebei Crossing Drill Bit Manufacture Co.,LTD
| Payment Terms | T/T |
| Supply Ability | 50000PCS/Month |
| Delivery Time | 5-15work days |
| Packaging Details | According to customer needs |
| Suitable Rock | Medium hard to hard rock formation |
| Machine Type | hydraulic & penumatic drill |
| Thread Protector | Available |
| Blade Gauge | Standard or Customized |
| Body Material | Steel or Tungsten Carbide |
| Blade Profile | Flat or Concave |
| Certification | ISO9001 |
| Place of Origin | Hebei,China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 50000PCS/Month |
| Delivery Time | 5-15work days | Packaging Details | According to customer needs |
| Suitable Rock | Medium hard to hard rock formation | Machine Type | hydraulic & penumatic drill |
| Thread Protector | Available | Blade Gauge | Standard or Customized |
| Body Material | Steel or Tungsten Carbide | Blade Profile | Flat or Concave |
| Certification | ISO9001 | Place of Origin | Hebei,China |
9 7/8”3 Blades PDC Diamond Bit PDC Drag Bit For Bore Hole Drilling
Step Drag Bit
Taking the traction drilling machine as an example, its typical structure includes:
Power and transmission system: The tractor's power output shaft drives the gearbox through a universal joint, adjusting the speed to the required value of the hydraulic oil pump.
Hydraulic system: including hydraulic oil pump, motor, directional valve, speed regulating valve, etc., to achieve independent and stable control of drill bit rotation and feed speed, and has overload protection function.
Drilling device: composed of drill bit, pulley, and guide rail. A drill bit typically consists of a drill tip, blades, spiral blades, and a spindle. It is driven to rotate by a hydraulic motor, while another motor controls its lifting and feeding through a chain drive.
The work process includes two parts: cutting soil and lifting soil. When the drill bit rotates and feeds downwards, the spiral blades transport the soil upwards along a specific trajectory. To ensure the continuity of the operation, the drill bit speed needs to be higher than the critical value calculated theoretically. The movement of soil on the surface of the drill bit can be divided into three zones to achieve effective soil lifting function.
| Size | Type Pin | Wt. (lbs.) |
| 3 7/8" - 4 3/4" | 2 3/8" REG Pin | 6 |
| 4 7/8" - 5 1/8" | 2 3/8" REG Pin | 7 |
| 4 5/8" - 5" | 2 7/8" REG Pin | 10 |
| 5 5/8" - 6 1/4" | 3 1/2" REG Pin | 18 |
| 6 1/2" - 6 3/4" | 3 1/2"REG Pin | 19 |
| 7" - 7 1/2" | 3 1/2" REG Pin | 21 |
| 7 5/8" - 8"-12 1/4 | 3 1/2" REG Pin 4 1/2 6 5/8 | 23 |
3 wings step drag bits
3 wings step drag bits are one piece construction of alloy steel cast with tungsten carbide cutting tips and gauge sides to ensure longer life. It has 3 wings and 3 flushing holes. Compared with 4 wings, 3 wings step drag bits tend to drill faster and aggressive, whereas, are shorter lasting and less durable.3 wings step style drag bits will produce larger cuttings force than chevron style drag bit. Rotary table speed ofstep drag bits should be between 60 and 80 rpm with light weight on bit (WOB).
3 wings step drag bits are economical tools when drilling softer geological formations and shallower depths, they are primarilydesigned for soft tomedium formations, such as Clay, Loam, Silt ,Mostsoft-to-medium soilsthat have some moisture, etc. And also step drag bits are recommended for drilling in Mining, Exploration, Environmental, Water well, Geo Exchange, etc.
| 3 wings step drag bits | ||
| Diameter | Thread | |
| 2 to 17 1/2 inch | 50.8 to 444.5mm | Optional |
Note: The diameter and thread showed as above are usual size, other sizes are available upon request.
Thread size: 2 3/8'' Reg, 2 7/8'' Reg, 3 1/2'' Reg, 4 1/2'' Reg, 6 5/8'' Reg, 2'' API IF, 2 3/8'' IF, 2 7/8'' IF, A Rod, N Rod, AW, BW, NW, AWJ, BWJ, NWJ.
Sinodrills drag bits features:
1, A solid one piece heat treated, 4140 alloy steel body for bit strength & durability;
2, CNC threaded machining for proper installation &use;
3, Forgings are milled to better seat the carbide inserts.
4, Select tungsten carbide inserts 5.5mm thick are standard.
5, Relief is hand ground behind carbide inserts for maximum performance.
Crossing Bit, a leading manufacturer of PDC bits and tricone bits in northern China, has exported its high-quality drill bits to more than 30 countries, demonstrating its strong market influence and exceptional product strength.
Crossing Drilling Tools has not only established a sterling reputation in the drilling, construction, HDD (horizontal directional drilling), exploration, water well, geothermal, mining, and oil & gas industries, but has also gained widespread recognition from customers for its exceptional product reliability and quality. We are committed to developing and producing a range of high-quality tools, including tricone bits, PDC bits, tricone cutters (single rollers), PDC reamers, drag bits, and HDD hole openers, to meet the diverse needs of our customers.
Company Details
Business Type:
Manufacturer,Seller
Year Established:
2006
Total Annual:
15000000-30000000
Employee Number:
60~80
Ecer Certification：
Verified Supplier
Hebei Crossing Drill Bit Manufacture Co Ltd,as a leading manufacturer of PDC bits , tricone bits and reamers in northern China, a ,we have 20 years exporting experience to more than 60 countries , gaining widespread praise. The company maintains a great reputation in the wel... Hebei Crossing Drill Bit Manufacture Co Ltd,as a leading manufacturer of PDC bits , tricone bits and reamers in northern China, a ,we have 20 years exporting experience to more than 60 countries , gaining widespread praise. The company maintains a great reputation in the wel...
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