China API 13 7 8 TCI Tricone Bits Tricone Drilling Bits Tricone Rock Bits

Size17 1/2"

IADC517

Bearing TypeElastomer sealed journal bearing

Thread Connection7 5 /8" reg pin

WOB(KN/mm)0.45~1.0

RPM(r/min)120~50

Applicable Formations medium to hard hardness formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc

Circulation systemMud pump

60mm,65mm,76mm,93mm,95mm,98mm(3 7/8"),101.6mm,114mm,118mm,120mm,127mm(5")
130.1mm(5 1/8"),133.3mm(5 1/4"),139.7mm(5 1/2"),142.8mm(5 5/8"),149.2mm(5 7/8")
152.4mm(6"),155.5mm(6 1/8"),158.7mm(6 1/4"),161.9mm(6 3/8"),165.1mm(6 1/2")
190.5mm(7 1/2"),193.6mm(7 5/8"),200.0mm(7 7/8")
212.7mm(8 3/8"),215.9mm(8 1/2"),222.2mm8 3/4")
241.3(9 1/2"),244.4(9 5/8"),250.8(9 7/8")
269.8(10 5/8"),295.3(11 5/8")
311.1(12 1/4"),346.0 (13 5/8"),349.2(13 3/4")
374.6(14 3/4")
381(15"),393.7(15 1/2"),406.4(16")
444.5(17 1/2"),508(20"),558(22"),609.6(24")
660.4(26")

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

Model Button/Insert Tooth Tricone Bits
Steel/Milled Tooth Tricone Bits

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 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 sizes:From 2 7/8 to 26"
larger sizes for hole opener bit ,reamer bitadvantagemost favourable price and best qualtitybearing type:sealed bearing and non-sealed bearing
HJ(metal sealed journal bearing)
HA (rubber sealed journal bearing
aircooled bearing typeFormation or layer soft ,medium soft ,hard,medium hard,very hard formationButton size (extra features)Button bit,saw teeth
1) Y-Conical teeth 2) X-chisel teeth
3)K- wide teeth
4)G- Gague protectionMaterialAlloy steel ,carbidePackingWooden case or steel casePayment termsT/T,L/C,Western unionDelivery termsBy sea or by airDelivery timeWithin 3 to 7 daysMarketCanada, USA,Middle east ,Africa,EuropeApplicationpetroleum&gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and underground foundation work