Changsha Sollroc Engineering Equipments Co., Ltd
FOCUS IN MANUFACTURING OF HIGH QUALITY DTH AND RC DRILLING TOOLS.
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6.5′′ (165mm) 3 Wings Blades Step Drag Bits Soft Rock Drill Bits for Water Well
Product Introduce
Three wings step drag bit is mainly used for water wells, mining, geothermal, environmental and exploration drilling. It is suitable for drilling in soft and soft-medium formations with fast penetration rate and high efficiency, and special for the large diameter holes' drilling.
Thread available:2 3/8, 3 1/2, 4 1/2, 5 1/2, 6 5/8 API Reg. Pin, IF Pin
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 |
Adavantages
1. By using forged high quality alloy steel and cutter insert, plus state of art welding technology and multiple precision heat treatment to provide highest penetration rate and longest lifespan at roughest condition
2. Drag drill bit is used for drilling overburdens with sands, clays and soft formations. These bits will produce larger cuttings than Chevron style bit.
3. Because the step drill bit is more aggressive than the Chevron, the effect will be faster
Application
Drag bits ar ethe perfect solution for soil, sand,sticky clay and grouting drilling.They are designed for the higher penetration rates in softer unconsolidated formations,provide lower costs per foot.Drag bits are more aggressive than tricone bits and have higher speed while lower cutting action
Detail Photos:
Package:
Wooden cases or your required
Delivery Time
Generally need 15-20 days
Transport Way
By air, By Sea or By Express