Changsha Sollroc Engineering Equipments Co., Ltd
FOCUS IN MANUFACTURING OF HIGH QUALITY DTH AND RC DRILLING TOOLS.
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Full Size Tungsten Carbide Inserts Three-Wing Drag Bits for Soft Drilling
Product Introduce
Drag drilling bit also named blade bits, with a Tungsten Carbide inserts on the blades.They are usually designed for use in soft formations such as sand, clay, or some soft rock.Their uses include drilling water wells, mining, geothermal, environmental and exploration drilling.Whenever possible, they should be used to drill pilot holes, for they produce cuttings are easiest to log.Normally drag bits are 3 wings, but we can make 4 wings following your drawings or samples. Many special designs are available upon your request.
Adavantages
1. Tungsten carbide possesses high wear resistance and impact resistance.
2. Parabolic crown profile and maximise junk slot area can clean bie better,and prolong the bit working life.
3. Non-symmetry blade arrangement enhances drilling well balance.
4. Opetimization for cutter shape, slant angle, cutter numbers prolong the cutter working life in combination with high quality cutter, and improve ROP and drilling efficiency.
Techinical parameter
| Type | Dimension | Thread connection | |
| inch | mm | ||
| 3 wings step type | 2 - 17 1/2 | 51-445 | 2 3/8'' - 6 5/8'' API REG |
| 3 wings chevron type | 2 1/2 - 8 | 64-203 | 2 3/8'' - 4 1/2'' API REG |
| 4 wings step type | 7 7/8 - 17 1/2 | 200-445 | 3 1/2'' - 6 5/8'' API REG |
| 4 wings chevron type | 2 5/8 - 12 | 67 - 305 | 2 3/8'' - 4 1/2'' API REG |
Application
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.
Detail Photos:
Package:
Wooden cases or your required
Delivery Time
Generally need 15-20 days
Transport Way
By air, By Sea or By Express