Drill Type Features1-3 Milled Tooth Bit4-8 Insert Tooth BitDetailed
explanation of drill bit model code1- Milled Tooth Bit, soft
formation (low compressive strength, high drillability)2- Milled
Tooth Bit, medium to medium hard formation (high compressive
strength)3- Milled Tooth Bit, Hard, Abrasive or Moderately
Abrasive4- Insert Tooth Bit, soft formation (low compressive
strength, high drillability)5- Insert Tooth Bit, soft to medium
hard formation (low compressive strength)6- Insert Tooth Bit,
medium hard formation (high compressive strength)7- Insert Tooth
Bit, Hard, Abrasive or Moderately Abrasive8- Insert Tooth Bit,
extremely hard, highly abrasive formation NameTricone
BitModelTCI bit, Steel tooth bit IADC CODE 116 117
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 to 26"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-
Gauge 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
IADCRock formationWOB (KN/mm)PRM(r/min)417/427/437Low compressive
strength, high drill-ability and extremely soft formation, like
shale, clay, sandstone, conglomerate etc0.35~0.90140~70447Low
compressive strength, high drill-ability and soft formation, like
shale, clay, sandstone, soft limestone, salt rock, plaster
etc.0.35~1.00140~60517Low compressive strength, high drill-ability
and soft formation, like shale, clay, sandstone, soft limestone,
salt rock, etc0.35~1.05120~50527Soft formation with low
compressive, like Low compressive strength, high drill-ability and
soft formation, like shale, clay, sandstone, soft limestone, salt
rock, anhydrite etc.0.35~1.05120~50537/547Low compressive strength,
medium hard formation with hard abrasive interlayer, like Hard
shale, anhydrite, soft limestone, sandstone, dolomite with
mezzanine, etc.0.50~1.05110~40617/627High compressive strength,
medium hard and thick hard interlayer, like hard shale, limestone,
sandstone, dolomite, etc.0.50~1.0580~40637/737High compressive
strength, medium hard and high abrasive formation, like limestone,
dolomite, sandstone, chert, etc.0.7~1.2070~40Note: Please do not
select the maximum value for WOB and rotational speed at the same
timeCutting StructureThe wear-resistance of the teeth is enhanced
with premium tungsten carbide hardfacing on the tooth surfaces for
the steel tooth bit.The durability of premium tungsten carbide
inserts is improved with new formulas and new techniques for insert
bitGauge StructureMultiple gague protection with gauge trimmers on
the heel and gauge inserts on the gauge surface of the
cone,tungsten carbide inserts and hardfacing on the shirttail
increases gauge holding capacity and bearing life.Bearing
StructureHigh precision journal bearing with two thrust faces,Balls
lock the cone.Hardfaced head bearing surface.Cone bearing inlaid
with friction-reducing alloy and then silver-plated.Abrasion
resistance and seizure of the bearing are improved.and suitable for
high rotary speedSeal and LubricationThe advanced metal seal
package consists of two metal seals and two elastic
energizers.Compressed energizers ensure good contact being kept on
two sealing surfaces of metal rings by elastic force,and achieves
the bearing seal.In the drilling,metal seals are relatively
dynamic,and the energizers are static.This will improve the
reliability and durability of bearing seal.The pressure compensator
system and advanced grease can greatly increase the lubricating
reliability.-COMPANY BRIEF-We provide high-quality and complete
drilling equipment including drilling rigs, drilling tools, mud
pumps, DTH drilling tools, rock drilling tools, etc. They are
widely used in water wells, farmland irrigation, geological
exploration, small pile holes, geothermal, rope coring, Mining etc.
Our products are the products of choice for drilling engineers in
many countries due to their precise design and efficient drilling
in use.Main productApplicationBorehole drilling, Civil
Infrastructure, civil engineering, and infrastructure, for rock
core drilling, Soil Testing and sampling, geophysical survey
companies, Pile foundation drilling, bridge drilling, wind power
generation, large-mouth engineering drilling, oil field,
metallurgy, mining, geological mineral exploration, water
conservancy and
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