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.
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.
Three wings type:
| 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 |
Thread 2 3/8" IF, 2 7/8" IF is available.
Four wings type:
| Size | Thread | Approx.weight (lbs. ) |
| 5 1/4" - 5 1/2" | 2 3/8", 3 1/2"API Pin | 10 |
| 4 5/8" - 5" | 2 3/8", 3 1/2"API Pin | 12 |
| 5 1/2" - 6 1/4" | 2 3/8", 3 1/2"API Pin | 22 |
| 6 1/2" - 6 3/4" | 2 3/8", 3 1/2"API Pin | 24 |
| 6 3/4" - 7 1/2" | 2 3/8", 3 1/2"API Pin | 26 |
| 8 1/2" - 11" | 3 1/2", 4 1/2" API Pin | 30 |
| 11" - 17 1/2" | 6 5/8" API Pin | |
Thread 2 3/8" IF, 2 7/8" IF is available.
Main features
1, All drag bits blades originate from high quality of heat treated
alloy steel forgings.;
2, Carbide inserts are individually brazed using 50% nickel silver
alloy;
3, Use high grade carbide inserts only;
4, All drag bits are built to the gauge tolerances.
Product application
Drag bit is a kind of economic drill bit used in soft formations
such as sand, clay, or some soft rock(not well for rough gravel) .
Dia.3” (89mm)~ 17 1/2”(444mm);
Connection threads: 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 7/8’’ API IF, etc.
Wings: Three wings, four wings;
Type: Chevron and Step type
Packaging and shipping
Packaging: Carton+plywood case or as request.
Shipping: By air, by sea, by express as request.
Company profile
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.
We are dedicated to offering our customers only premium quality
products and services to enable them to achieve the highest
possible productivity for their business and projects. If you are
looking for the best, fastest and most productive drilling tools in
the world, Sollroc should be your best choice and preference.
