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[China]
Trade Verify
Address: Room 1407,BuildingA,No.13,Beiyuan Road,Chaoyang District,Beijing,China
Contact name:Sekura Yu
Beijing Jincheng Mining Technology Co., Ltd. |
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Verified Suppliers
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ISO CE certificatied 4 wings chevron drill bits for Big Diameter Mining / Water Well Srilling
Application
The diameter and thread showed as above are usual size, other sizes are available upon request.
Thread size: 2 3/8'' API Reg, 2 7/8'' API Reg, 3 1/2'' API Reg, 4 1/2'' API Reg, 6 5/8'' API Reg, 2'' API IF, 2 3/8'' API IF, 2 7/8'' API IF, A Rod, N Rod, AW, BW, NW, AWJ, BWJ, NWJ.
Characteristics
1. A solid one piece heat treated, 4140 alloy steel body for bit
strength & durability;
2. CNC threaded machining for proper installation &use;
3. Forgings are milled to better seat the carbide inserts.
4. Select tungsten carbide inserts 5.5mm thick are standard.
5. Relief is hand ground behind carbide inserts for maximum
performance.
Specification
| No. | Bit Diameter | Bit Design | Type | Part No |
| inch | mm | Step / Chevron | ||
| 1 | 2 1/2〞 | 64 | S/C | DB212S/DB212C |
| 2 | 2 3/4〞 | 70 | S/C | DB234S/DB234C |
| 3 | 2 15/16〞 | 75 | S/C | DB21516S/DB21516C |
| 4 | 3〞 | 76 | S/C | DB3S/DB3C |
| 5 | 3 1/8〞 | 79 | S/C | DB318S/DB318C |
| 6 | 3 1/4〞 | 83 | S/C | DB314S/DB314C |
| 7 | 3 1/2〞 | 89 | S/C | DB312S/DB312C |
| 8 | 3 5/8〞 | 92 | S/C | DB358S/DB358C |
| 9 | 3 3/4〞 | 95 | S/C | DB334S/DB334C |
| 10 | 3 7/8〞 | 98 | S/C | DB378S/DB378C |
| 11 | 4〞 | 102 | S/C | DB4S/DB4C |
| 12 | 4 1/8〞 | 105 | S/C | DB418S/DB418C |
| 13 | 4 1/4〞 | 108 | S/C | DB414S/DB414C |
| 14 | 4 1/2〞 | 114 | S/C | DB412S/DB412C |
| 15 | 4 5/8〞 | 117 | S/C | DB458S/DB458C |
| 16 | 4 3/4〞 | 121 | S/C | DB434S/DB434C |
| 17 | 4 7/8〞 | 124 | S/C | DB478S/DB478C |
| 18 | 5〞 | 127 | S/C | DB5S/DB5C |
| 19 | 5 1/8〞 | 130 | S/C | DB518S/DB518C |
| 20 | 5 1/4〞 | 133 | S/C | DB514S/DB514C |
| 21 | 5 1/2〞 | 140 | S/C | DB512S/DB512C |
| 22 | 5 5/8〞 | 143 | S/C | DB558S/DB558C |
| 23 | 5 3/4〞 | 146 | S/C | DB534S/DB534C |
| 24 | 5 7/8〞 | 149 | S/C | DB578S/DB578C |
| 25 | 6〞 | 152 | S/C | DB6S/DB6C |
| 26 | 6 1/8〞 | 156 | S | DB618S |
| 27 | 6 1/4〞 | 159 | S | DB614S |
| 28 | 6 1/2〞 | 165 | S | DB612S |
| 29 | 6 5/8〞 | 168 | S | DB658S |
| 30 | 6 3/4〞 | 171 | S | DB634S |
| 31 | 6 7/8〞 | 175 | S | DB678S |
| 32 | 7〞 | 178 | S | DB7S |
| 33 | 7 1/8〞 | 181 | S | DB718S |
| 34 | 7 1/4〞 | 184 | S | DB714S |
| 35 | 7 1/2〞 | 191 | S | DB712S |
| 36 | 7 5/8〞 | 194 | S | DB758S |
| 37 | 7 3/4〞 | 197 | S | DB734S |
| 38 | 7 7/8〞 | 200 | S | DB778S |
| 39 | 8〞 | 203 | S | DB8S |
| 40 | 8 1/8〞 | 206 | S | DB818S |
| 41 | 8 1/4〞 | 210 | S | DB814S |
| 42 | 8 1/2〞 | 216 | S | DB812S |
| 43 | 8 5/8〞 | 219 | S | DB858S |
| 44 | 8 3/4〞 | 222 | S | DB834S |
| 45 | 8 7/8〞 | 225 | S | DB878S |
| 46 | 9〞 | 229 | S | DB9S |
| 47 | 9 1/8〞 | 232 | S | DB918S |
| 48 | 9 1/4〞 | 235 | S | DB914S |
| 49 | 9 1/2〞 | 241 | S | DB912S |
| 50 | 9 5/8〞 | 244 | S | DB958S |
| 51 | 9 3/4〞 | 248 | S | DB934S |
| 52 | 9 7/8〞 | 251 | S | DB978 |
| 53 | 10〞 | 254 | S | DB10S |
| 54 | 12〞 | 305 | S | DB12S |
| 55 | 12 1/4〞 | 311 | S | DB1214S |
| 56 | 15〞 | 381 | S | DB15S |
| 57 | 17 1/2〞 | 445 | S | DB1712S |
Packing& Delivery
Service
In our after sales service system, We establish perfect control system strictly according to ISO-9000 series, in this system, technology date and problem solve solution and preventive measures will be provided in any maintain project, all the spare parts will be used in new OEM products with installation instructions, packing list, manufacturer's instruction, qualification and Warranty certificate.
We provide "one equipment & one case, endless service, namely
the after sales service begin from the order confirmation, last for
the working life of the equipment.
