Factory Supply Hard Rock Drilling Bits 12 1/4" Tricone Drill Bit for Hard Rock

• Certification：ISO 9001:2008
• Standard：API
• Surface Treatment：Galvanized
• Manufacturing Process：Forging
• Material：Carbon Steel
• Od：311mm 12 1,4"

=== Base Info ===

• Model NO.：311
• Connected Thread：6 5,8reg
• Guaratee Time：4 Years
• IADC Code：IADC537
• Transport Package：Polywood Case
• Specification：12 1,4" i
• Trademark：JW
• Origin：China
• HS Code：8207191
• Production Capacity：300pieces,Month

=== Description ===
roductTricone BitModelTCI BIT, STEEL TOOTH BITIADC CODE116 117 126 127 136 137 216 217 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526 537 547 516 536 535available sizesFrom 2 7/8 to26"larger sizes for hole opener bit ,reamer bitadvantagemost favorable price and best qualitybearing typesealed bearing and non-sealed bearingmetal sealed journal bearingrubber sealed journal bearingaircooled bearing typeFormation or layersoft ,medium soft ,hard, medium hard, very hard formationButton size (extra features)Button bit,saw teeth1) Y-Conical teeth 2) X-chisel teeth3)K- wide teeth4)G- Gague protectionPackingWooden caseDelivery termsBy sea or by airMarketCanada,USA, Middle east ,Africa,EuropeApplicationPetroleum & gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and underground foundation work

Main Dill Bit Provided

1). PDC Bit: Matrixt body/Steel body with cutter or without cutters;

2). PDC Drag Bit: Drilling soft formation, save cost, longtime usage than normal 

     drag bits, and suitable for mud clay and sandstone formation;

3). Tricone Bit:TCI and Steel/Milled tooth;

4). Mining Tricone Bit:High quality mining tricone bit with good price;

5). Diamond Core Bit:Various kind of core bits;

6). Other Drilling Tools:Manual Tongs,Safety clamp, Elevator,Slips,Taper, and so on...