1.Specification:12 1/4'' 311.1mm
2.IADC:121
3.material:high manganese steel
4.WOB:0.20~0.70 KN/mm
5.sealing:metal or rubber
Port: Tianjin Port
Minimum Order Quantity: 1 Piece/Pieces drill bit
Supply Ability: 5000 Piece/Pieces per Month drill bit
Payment Terms: L/C,T/T,Western Union
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Packaging Detail: carton, wooden box, steel box or as your requirements
Delivery Detail: about 10 days after received the payment
1. Advantages of our products:
(1) Strong resistance to abrasion and impact resistance.
(2) Cutter's quality performance is good ,
(3) long work life
(4) stocks adequate, time delivery
(5) rich experience in drill bit
(6) good after-sales service
(7) High quality, competitive price
(8)Good feedback from customer
2. Detailed Description Of This Product:
| Size | 12 1/4'' 311.1mm |
| Pin shank size | 6 5/8 Reg |
| Bit type | SKW121 |
| IADC Code | 121 |
| types of bearing | jounmal beanngs |
| types of sealing | metal rings or rubber rings |
| Application formation | Soft with low compressive strength and high drillability, such as shale, clay, salt bed and etc |
| Main characteristics of bit(cutting structure) | The back cone and the teeth all surface is are hardfaced strengthening, improved steel tooth shape and welding materials,showing teeth higher |
| Normal WOB KN/mm (bit dia.) | 0.20--0.70 |
| Rotary speed (rpm) | 200-80 |
3.Available models:
| Steel tooth (IADC) | 111, 121,131 117,124,126,127,136,137 211,311 216,217, 227 |
| TCI (IADC) | 415,435, 417,437 515,525,535,545, 517,527,537,547 615,625,635,,617,627,637,737 512,522,532,612,622,632,732 |
4. Do you want to learn more about our products?
5. Do you wanna know how to ship the bits to your country?
6. How to get product information and offers ?
Pls feel free to contact Miss Li ( send email ,add msn or skype or give me a call)
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