9inch (228mm) Step Drag Bit Carbide Tips Alloy Drag Bits 228mm Water Well Bits
Step Drag Bit
Dragging drill bit is a specialized tool used for drilling operations, usually referring to drilling equipment that is pulled and powered by an external power source (such as a tractor). Its core function is to achieve cutting and removal of soil or rock through a rotating drill bit. This type of equipment is widely used in fields such as deep planting afforestation and water well drilling.
Traction drilling machine: specially designed for deep planting and afforestation, using a tractor as the traction and power source. The equipment drives the drill bit to rotate and lift through a hydraulic system, achieving efficient drilling. Its development has gone through three generations of improvements, from side mounted to rear mounted, with efficiency increasing from 60-90 trees per hour to 90-120 trees per hour.
PDC drag drill bit: mainly used in engineering fields such as water well drilling and rock drilling (such as sandstone and limestone). PDC (Polycrystalline Diamond Composite) drill bits are known for their wear resistance and efficient cutting performance. The market price varies greatly depending on specifications, brands, and purchase quantities, with quotes ranging from $45 to $500.
| 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 |
| 5 1/4" - 5 1/2" |
2 3/8" REG Pin |
8 |
| 4 5/8" - 5" |
2 7/8" REG Pin |
10 |
| 5 1/8" - 5 1/2" |
2 7/8" REG Pin |
11 |
| 5 5/8" - 6 1/4" |
3 1/2" REG Pin |
18 |
| 6 1/2" - 6 3/4" |
3 1/2"REG Pin |
19 |
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 |
| 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.
Company Profile
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.
Our meticulously designed PDC bits are specifically optimized for directional drilling. With exceptional stability, durability, and "directional" friendliness, they are able to precisely maintain the bit's position in narrow and complex pay zones, ensuring smooth drilling operations.
This unique steerable bit technology, combined with high ROP (rate of penetration), sets Crossing Bit apart from the competition and establishes it as a leader in the industry.
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