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[China]
Trade Verify
Address: No55. Jiucaiyuan road, Furong District, Changsha, Hunan,China
Contact name:Ling Bo
Changsha Sollroc Engineering Equipments Co., Ltd |
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Verified Suppliers
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Three Wings 3 Blades Step Drag Bits Chevron Drag Bits Step Bits
Product specifications:
A drag bit is simply a series of blades (usually three or four in number) which produce a shearing
action when rotated. They are comparatively inexpensive due to the lack of moving parts and theycan penetrate softer formations such as stiff clays and mudstones very quickly.The drag bit
usually used in very soft to medium formation when the dth hammer as the tricone bit, lose of
their effectiveness.The cleaning of the hole is realized by the injection of air or water.
There are two forms of drag bits:
- "Step" type for soft grounds
- "Chevron" type for medium hard grounds
Specification of three wings drag bit :
1) Drag bits are made according to API standard or no thread standard just welding.
2) Various step and chevron drag bits are available from 3 inch to 17 1/2 inch. (normal small size are 3",3 3/4",3 7/8",4 3/4",4 5/8",5 7/8",8 1/2" to 17 1/2"and so on).
3) There is very good feedback from our customers because of the quality and price.
4) Different drag bits can be made according to your drawings or samples.
Drag bit are manufactured from forged high quality alloy steel and PDC cutter insert, plus state of art welding technology and multiple precision heat treatment to provide highest penetration rate and longest lifespan at roughest condition.
Drag bits are designed for medium to hard formation and are used in areas that contain a lot of rock and also in the oil field.
| Size | Type Pin | Wt. (lbs.) |
| 1 3/4" - 2 1/2" | AW, A-Rod | 2 |
| 2 5/8" - 2 7/8" | AW, A-Rod | 2 1/2 |
| 2 3/4" - 3 1/4" | 3THD/4THD N-Rod, 2" IF | 4 |
| 3 3/8" - 3 3/4" | 3THD/4THD N-Rod, 2"IF | 4 1/2 |
| 3 7/8" - 4 3/4" | 2 3/8" API Pin | 6 |
| 4 7/8" - 5 1/8" | 2 3/8" API Pin | 7 |
| 5 1/4" - 5 1/2" | 2 3/8" API Pin | 8 |
| 4 5/8" - 5" | 2 7/8" API Pin | 10 |
| 5 1/8" - 5 1/2" | 2 7/8" API Pin | 11 |
| 5 5/8" - 6 1/4" | 3 1/2" API Pin | 18 |
| 6 1/2" - 6 3/4" | 3 1/2" API Pin | 19 |
| 7" - 7 1/2" | 3 1/2" API Pin | 21 |
| 7 5/8" - 8"-12 1/4 | 3 1/2" API Pin 4 1/2 6 5/8 | 23 |
We can also provide related products DTH button bits, ODEX,
symmetric overburden systems, slide block drilling systems, etc and
DTH drilling pipes for various thread API REG, API IF, BECO, etc
SOLLROC is specializing in manufacturing Drill Rods, Casings, Core barrels, Diamond bits, Reaming
shells, Drill rigs, PDC bits and other drilling tools & equipment for geological exploration,
mining, geotechnical, dam grouting, water well and horizontal directional drilling.
