drag bit is usually designed for soft formations such as sand, clay
or some soft rock. However, they will not work well in coarse
gravel or hard rock formations. Uses include drilling water wells,
mining, geothermal, environmental and exploration drilling.
Whenever possible, they should be used to drill pilot holes because
they produce cuttings that are easiest to log.
Three-wing bits tend to drill faster, whereas four-wing bits are
longer-lasting, more durable, and drill a straighter hole.
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.
Specification Of Drag Bit
| Drag bits |
| Type | Suitable formation | Diamter |
| 2 wings air flush step drag bit | Medium to Soft | 95.3mm(3 3/4 inch) |
| 3 wings air flush step drag bit | Medium to Soft | 95.3mm(3 3/4 inch) |
| 3 wings air flush chevron drag bit | Medium to hard | 95.3mm(3 3/4 inch) |
| 3 wings full flush step drag bit | Medium to Soft | 95.3mm(3 3/4 inch) |
| 3 wings step drag bit | Medium to hard | 50.8 to 444.5mm2 to 17 1/2 inch) |
| 3 wings chevron drag bit | Medium to hard | 63.5 to 304.8mm(2 1/2 to 12 inch) |
| 4 wings step drag bit | Medium to Soft | 165.1 to 444.5mm(6 1/2 to 17 1/2 inch) |
| 4 wings chevron drag bit | Medium to hard | 165.1 to 304.8mm(6 1/2 to 12 inch) |
| Claw bit | Fast penetration | |
Thread size: 2 3/8'' API Reg, 2 7/8'' API Reg, 3 1/2'' API Reg, 4 1/2'' API
Reg, 6 5/8'' API Reg, 2'' API IF, 2 3/8'' API IF, 2 7/8'' API IF, A Rod, N Rod, AW, BW,
NW, AWJ, BWJ, NWJ. |
Picture of Drag Drill Bit
Jinzen Drilling supplies a variety of drag bits for many types of
projects drilling needs, including 3-wing type bits for soft and
medium formations, 4-wing, especially 4-wing chevron type for
harder formations. Each of our bits is machined from a forging to
exacting standards and then tipped with tungsten carbide. Mining
grade tungsten carbide tips are brazed to the bit wing face for
heavy duty bits. The pin threads are CNC manufactured and wings
surfaces hardening subsequently.
