Get Premium Quality Ball Tooth Tricone Bits - Factory Direct Prices| IADC637 5.5 (140mm) for professional drilling needs. Buy now and save big with our factory direct pricing!

Wholesale rig's drilling bit for the medium hard formations well The description of IADC637 bit is TCI journal sealed bearing bit.It has gauge protection.It will be siutable for medium hard formations .The compressive strength is high. The compressive strength are as following: 100-150MPA 14,500-23,000PSI The formation will be used for hard, well-compacted rock such as granites,hard silica limestones,pyrite ores,quarzite streaks,hematite ores,chromium ores,magnetite ores and phosphorite ores. Our factory can supply the TCI tricone bit and Steel tooth bit. The avariety of sizes is from 3 3/8" to 26" and covered most of all IADC code.

5 1/2"(140mm) Reverse Circulation TCI Tricone Rock Bit with Central Jet Hole 1> Reverse Circulation is a special drilling process, the mud fluid is sucked from hole bottom to ground through central hole, rock chipes could be clear at higher rate than regular circulation. 2>This design of tricone bits has a central jet hole , rock chips could be circulated to ground inside drill pipe. 3>Reverse circulation is always used in drilling pebbles or sparse rocks, the ROP is higher than normal circulation. 4>The tricone rock bit with central hole could be used in both reverse circulation and normal circulation.

Basical Specification
Size of Rock Bit	5 1/2 inches
Size of Rock Bit	140 mm
Bit Type	TCI Tricone Bit
Thread Connection	3 1/2 API REG PIN
IADC Code	IADC 637G
Bearing Type	Journal Sealed Bearing with Gauge Protection
Bearing Seal	Elastomer or Rubber/ Metal
Heel Protection	Available
Shirttail Protection	Available
Circulation Type	Mud Circulation
Drilling Condition	Rotary drilling,high temp drilling,deep drilling,motor drilling
Nozzles	Central Jet Hole
Operating Parameters
WOB (Weight On Bit)	15,729-34,604 lbs
WOB (Weight On Bit)	70-154KN
RPM(r/min)	40~180
Formation	Medium formation with low compressive strength,such as medium,soft shale,medium soft limestone,medium soft limestone,medium soft sandstone, medium formation with harder and abrasive interbeds,etc.

Far Eastern are factory specializes in drill bits,such as tricone bits, PDC bits, HDD hole opener,Foundation roller cutters for many different applications.The application including oil field,geological exploration, natural gas ,water well drilling, HDD , Construction directional boring,mining,and foundation... It is important to increase the drill bit life as the leader of drilling bit in China for us, we try our best to improve the bit with high rotary spped. We improve the bits to be lower cost of drilling-per-foot.We hope thta w can give the best service and lowest prices based on the high quality.