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Model No. : | 12 1/4 inch |
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Brand Name : | SRT |
Product description
Steel Tooth Tricone Rock Bits IADC CODE---Formation |
IADC 114. 115.116.117 Soft formation
The 114-117 bits are used to drill low-compressive strength,soft formations. Long projection tooth lengths are used on high offset cones to provide the greatest penetration rates possible. Wear-resistant hard facing is used to control tooth wear.On the softest bi types this hard facing completely covers the bit teeth |
IADC 124.125.126.127 Medium formation
Medium formation with high-compressive strength and high drillability. Such as sandstone, anhydrite, salt, shale, limestone.
|
IADC 134.135.136.137 Medium soft formation
Formations with low compressive strength, such as shale, anhydrite, sand and so on for soft formation
|
IADC216.217 Medium hard formation
The 216-217 bit are always used to Soft to medium formations with low-compressive strength, such as shale, anhydrite, sand and so on for soft formation.
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Tungsten Carbide Tricone Rock Bits
IADC
CODE--- Formation
IADC 437 Soft Formation
IADC 517 Medium Formation
IADC 617 Medium-Hard Formation
IADC 637 Hard Formation
The 437 tci bits are used to drill
low compressive strength,very soft formations .TCI bits maximize the use of
bothconical and chisel tungsten carbide inserts of large diameters and high
projection.This cutting sstructure design,combined with maximum cone
offset,results in high bit penetration rates .The deep intermesh of cutter
rows prevents bit bailing in sticky formations.
The 517features aggressive chisel
tungsten carbide inserts on the heel rows and inner rows.This desing provides
a fast drilling rate and added cutting structure durability in medium-to
medium hard formations .The HSN rubber o-ring provides adequate sealing for
bearing durability.
The 617features robust chisel
tungsten carbide inserts on the heel row and conical on the inner rows.This
design provides a fast drilling rate and added sutti8ng structure durability
in medium to medium hard formations .The HSN rubber o-ring [rovodes adequate
sea;omg fpr bearomg dirability.
The 637bits can be used to drill
hard and abrasive formations .Wearresistant tungsten carbide inserts are used
in the outer rows to prevent loss of bit gauge.Maximum numbers of
bemisphericalshaped inserts are used in all rows to provide cutter durability
and long life.
Tricone Roller Bit Available Diameters
76mm, 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") |
After -service quality guarantee
1.every bit has four years quality guarantee.
2.bits continous working time is about 150~200hours,if bearing is broken
or teeth dropped in this period of time,we can send you new one for free.
3.To customer placing big order,we can supply technical support.
Send your inquiry to this supplier