hejian tengda petroleum supplies company
Quality first Customer first
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product specifications
Model | |
IADC CODE | 116 117 12 6127 136 137 216 217 226 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347 |
417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526 537 547 516 536 535 | |
available sizes: | From 2 7/8 to 26” larger sizes for hole opener bit ,reamer bit |
advantage | most favourable price and best qualtity |
bearing type: | sealed bearing and non-sealed bearing HJ(metal sealed journal bearing) HA (rubber sealed journal bearing aircooled bearing type |
Formation or layer | soft ,medium soft ,hard,medium hard,very hard formation |
Button size (extra features) | Button bit,saw teeth 1) Y-Conical teeth 2) X-chisel teeth 3)K- wide teeth 4)G- Gague protection |
Material | Alloy steel ,carbide |
Advantage
1)soft with low compressive strength ,such as soft marl ,clay, unconsolidated sand-storm ,salt or hard shale,ect.
2)The world's latest sealing technology ,ensure the bearing is more effcient ,and more suitable for drilling at high rotary speed and high tem-perature working condition.
3)Bits bear is enhanced treatment ,and prolonging the bit working life,reducing the drilling cost.
If you have any question,please contact me
