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Product Details:
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| Product Name: | 3 Wings Drag Bit | Material: | Alloy Steel |
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| Diameter: | 2 3/4"-17 1/2" | Thread: | API REG, API Pin, N-Rod |
| High Light: | step drag bits,chevron drag bit |
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Product description
Drag bit is used in soft to medium formation such as sand, clay, or some soft rock for water well drilling, mining,
geothermal, environmental and exploration drilling. When the DTH hammer or tricone bit lose their effectiveness and then
the drag bit is used, the cleaning of the hole is realized by the injection of air or water. They are not suitable in coarse gravel
or hard rock formations.
There are two forms of drag bits:
1. Step type:
- Step type for soft grounds, Step type bits are the most common type of drag bit used in the world today. They are primarily
designed for soft formation.
| Size | Thread | Approx.weight(lbs.) |
| 2 3/4" - 3 1/2" | N - Rod | 3 |
| 3 1/2" - 4 3/4" | 2 3/8" API REG | 4 - 6.7 |
| 4 7/8" - 5 1/8" | 2 3/8" API REG | 8.4- 8.7 |
| 5 1/4" - 5 1/2" | 2 3/8" API REG | 8.8 - 9.5 |
| 5 5/8" - 6" | 2 3/8" , 3 1/2" API Pin | 9.4 - 10.6 |
| 6 1/8" - 6 1/4" | 2 3/8" , 3 1/2" API Pin | 10.7 - 17 |
| 6 1/2"- 6 3/4" | 2 3/8" , 3 1/2" API Pin | 18 - 18.6 |
| 5 1/2" - 6 3/4" | 2 3/8" ,3 1/2" API Pin | 19 - 20.5 |
| 6 7/8" - 7 7/8" | 2 3/8" , 3 1/2" API Pin G | 21.2 - 22.7 |
| 8" - 9" | 3 1/2", 4 1/2" API Pin | 22.8 - 23.4 |
| 9 1/8" - 10 7/8" | 3 1/2", 4 1/2" API Pin | 23.6 - 31.3 |
| 7 7/8" - 8 7/8" | 3 1/2", 4 1/2" API Pin | 30 - 33.5 |
| 9" - 9 7/8" | 3 1/2", 4 1/2" API Pin G | 34.5 - 36 |
| 7 7/8" - 9 7/8" (4 wing) | 3 1/2", 4 1/2" API Pin | 25.6 - 28.2 |
| 7 7/8" - 10" (4 wing) | 3 1/2", 4 1/2" API Pin G | 44.5 - 50.7 |
| 10 5/8" -11" | 3 1/2" 4 1/2" API Pin | |
| 12" -17 1/2" | 6 5/8" API REG Pin |
2. Chevron type:
- Chevron type for medium hard grounds. Chevron bits are designed for medium formations and are used in areas that
contain a lot of rock and also in the oilfield for drilling out concrete casings and plugs. Chevron drill bits are used for drilling
more abrasive formations like soft sandstones and shales.
The Chevron style bit is more durable than the step drill bit but, because of cutting structure, will penetrate more slowly.
| Size | Thread | Approx. weight (lbs.) |
| 2 3/4" - 3 1/4" | N-Rod | 4 |
| 3 3/8" - 3 3/4" | 2 3/8" API Pin | 5 |
| 3 7/8" - 4 3/4" | 2 3/8" API Pin | 5.8 - 6.7 |
| 4 7/8" - 5 1/8" | 2 3/8" API Pin | 6.7 - 7.1 |
| 5 1/4" - 5 1/2" | 2 3/8" API Pin | 7.5 - 9.3 |
| 4 5/8" - 5" | 2 3/8", 3 1/2" API Pin | 6.8 - 7 |
| 6 1/2" - 6 3/4" | 2 3/8", 3 1/2" API Pin | 14.2 - 14.5 |
| 7" - 7 1/2" | 2 3/8", 3 1/2" API Pin | 18.8 - 19.4 |
| 7 5/8" - 8" | 3 1/2", 4 1/2" API Pin | 19.6 - 20.3 |
| 8 1/2"-11" | 3 1/2", 4 1/2" API Pin | 20.5 - 30 |
Detailed pictures
Package and shipping
Package: carton+plywood case, or as your special request.
Shipping: By sea, by air, by express, as your request.
Company information
Sollroc , with more 10 years of experience ,is one of the professional manufacturer and supplier of high performance rock drilling tools like: DTH hammers and bits, RC hammers and bits, DTH drill rods and top hammer drilling tools. Our tools are widely used in different drilling applications including mining, quarrying, water well drilling, geotechnical industries and etc.
Sollroc is specialized in designing, manufacturing and developing equipments and accessories for standard models as well as the special needs of clients and provides them with the best suggestions and solutions. We practice strict and stringent quality control during manufacturing and adhered to recognized and approved quality control systems. Each of our products follows the quality requirements and procedures to ensure finished products are durable and superior up to standard.
Contact Person: Ms. Ling Bo
Tel: 86-13077353340
Fax: 86-731-85551635
