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Product Details:
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| Model Number: | 12''--305mm | Type: | Step Drag Bits |
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| Usage: | Oil Field, Natural Gas, Mining Drlling, Water Well | Material: | Tungsten Carbide |
| Application: | Mining Drlling, Water Well Drilling | Tooth Type: | Insert Tooth |
| Thread: | 4-1/2API REG | Package: | Carton And Wooden Case |
| Blades: | Three Wings | PDC Cutter: | High Strength Flat PDC |
| Processing Type: | Forging | Nspection: | SGS,BV |
| High Light: | tricone drill bit,tricone rock roller bits |
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Drilling drag bit, Chevron step drill bit for clay sand water well drilling 12inch
Application
12inch Chevron step drill 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.
Types: Ordinary type; Reinforced type; Super strength type.
Threads: Any female or male threads.
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;
Keywords:clay cutter,drag bits,drag bit,drag bits for water well drilling,step type drag bits,chevron drag bit,step drag bits,chevron drill bits,chevron drag bit,water well drilling bits
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.
Contact Person: Ms. Sekura Yu
Tel: +8613811398425
Fax: 86-10-57159802
