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SOLLROC
SC-DRAG BIT
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Product Description
Drag bit is a comparatively economic tools and they can 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 and the tricone bit, lose of their effectiveness. The cleaning of the hole is realized by the injection of air or water. It is used in water wells, mining, geothermal, environmental and exploration drilling.
There are two forms of drag bits:
"Step type" bits are the most common type of drag bit used in the world today. They are primarily designed for soft to medium formations.
"Chevron type" bits are designed for medium to hard formations and are used in areas that contain a lot of rock and also in the oilfield for drilling out concrete casings and plugs.
The specifications of SOLLROC Step drag bits:
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 |
