Beijing Jincheng Mining Technology Co., Ltd.
Beijing Jincheng Mining Technology Co., Ltd. Survival by quality, Development by credit!
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3 Wings 12 Inch Water Well Drilling Tools Drag Bits 76mm - 445mm Diameter
Application
Drag Bits can be used to drill any type of hole; they are the perfect solutions for mud, sand, and sticky clay, as well as drilling out concrete or grout. Drag bits are also a more economical solution for seismic drilling.
Chevron bits are designed for medium to hard formation and are used in areas that contain a lot of rock or drilling out concrete casings and plugs.
Step bits are the most common type of drag bit used in the world today. They are primarily designed for soft to medium formations.
Characteristics
All sizes are generally 3 wings and standard design;
Any size of 4 wings or chevron type is upon customer’s request;
All sizes connection type are AROD,NROD or standard API thread;
Any special size and design is upon customer’s request.
Drag bits diameter:76mm to 445mm;
Step Drag Drill Bits thread sizes: :2 3/8” API Reg, 3 1/2” API Reg, 4 1/2” API Reg, 6 5/8” API Reg, etc;
Specification
| Bit Size | Pin Type |
| 2-3/4″ – 3-1/2″ | 4 THD N-ROD |
| 3-5/8″ – 4-3/4″ | 2-3/8″ API PIN |
| 4-7/8″ – 5-1/8″ | 2-3/8″ API PIN |
| 5-1/4″ – 5-1/2″ | 2-3/8″ API PIN |
| 5-5/8″ – 6″ | 2-3/8″ API PIN |
| 6-1/8″ – 6-1/4″ | 2-3/8″ API PIN |
| 6-1/2″ – 6-3/4″ | 2-3/8″ API PIN |
| 5-1/2″ – 6-3/4″ | 3-1/2″ API PIN |
| 6-7/8″ – 7-7/8″ | 3-1/2″ API PIN |
| 8″ – 9″ | 3-1/2″ API PIN |
| 9-1/8″ – 10-7/8″ | 3-1/2″ API PIN |
| 7-7/8″ – 8-7/8″ | 4-1/2″ API PIN |
| 9″ – 9-7/8″ | 4-1/2″ API PIN |
| 10″ – 10-7/8″ | 4-1/2″ API PIN |
| 11″ – 12-1/4″ | 3-1/2″ OR 4-1/2″ API PIN |
Kelly Bits
| Bit Size | Box Connection |
| 3-7/8″ | ARCO, 2″ IF |
| 4-3/4″ – 5-1/4″ | 2-3/8″ MHJR, FA, MR, IF |
| 5-1/2″ – 6-3/4″ | 2-3/8″ MHJR, FA, MR, IF |
| 6-7/8″ – 7-7/8″ | 2-3/8″ MHJR, FA, MR, IF |
| 8″ – 10″ | 2-3/8″ MHJR, FA, MR, IF |
H.D. Chevron One-Piece Bits
| Bit Size | Pin Type |
| 3/4″ – 2-1/2″ | A-ROD, AW |
| 2-5/8″ – 2-7/8″ | A-ROD, AW |
| 2-3/4″ – 3-1/4″ | 3THD/4THD N-ROD, 2″ IF |
| 3-3/8″ – 3-3/4″ | 3THD/4THD N-ROD, 2″ IF |
| 3-3/4″ – 4-3/4″ | 2-3/8″ API PIN |
| 4-7/8″ – 5-1/8″ | 2-3/8″ API PIN |
| 5-1/4″ – 5-1/2″ | 2-3/8″ API PIN |
| 4-5/8″ – 5″ | 2-7/8″ API PIN |
| 5-1/8″ – 5-1/2″ | 2-7/8″ API PIN |
| 5-1/2″ – 6-1/4″ | 3-1/2″ API PIN |
| 6-1/2″ – 6-3/4″ | 3-1/2″ API PIN |
| 7″ – 7-1/2″ | 3-1/2″ API PIN |
| 7-5/8″ – 8″ | 3-1/2″ API PIN |
Packing& Delivery
FAQ
1. Shipping time for an order
We have many stock. As usual, we can delivery the goods as soon as we get the full payment.
2. Quality Control
Strict inspection and testing for every order before shipping out .
3. How can we trust your company?
We support Alibaba trade insurance. Protect products quality, shipment on time and your covered amount.
4. After Sales Service
Free replacement will provide once the failure confirmed caused by our product quality.