Customization: | Available |
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Customized: | Customized |
Standard: | DIN, JIS, AISI, API |
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Basical Specification | |
Size of Rock Bit | 8 1/2 inches |
215.90 mm | |
Bit Type | Steel (Milled) Tooth Tricone Bit |
Thread Connection | 4 1/2 API REG PIN |
IADC Code | IADC127 |
Bearing Type | Journal Bearing with Gauge Protection |
Bearing Seal | Sealed |
Heel Protection | Available |
Shirttail Protection | Available |
Circulation Type | Mud Circulation |
Drilling Condition | Rotary drilling,high temp drilling deep drilling, motor drilling |
Nozzles | Three Nozzles |
Operating Parameters | |
WOB (Weight On Bit) KN/mm | 0.3-0.85 |
RPM(r/min) | 60-180 |
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. |
Steel (Milled) Tooth Bit IADC Code | IADC111,IADC114,IADC115,IADC116,IADC117,IADC121,IADC124,IADC125,IADC126, IADC127,IADC131,IADC135,IADC136,IADC137,IADC214,IADC216,IADC225,IADC226, IADC235,IADC237,IADC314,IADC315,IADC316,IADC317,IADC325,IADC326,IADC327, IADC335,IADC336,IADC337,IADC347 |
Tungsten Carbide Insert (TCI) Bit IADC Code | IADC417,IADC427,IADC437,IADC517,IADC527,IADC537,IADC617,IADC627,IADC637, IADC737,IADC837,IADC832,IADC415,IADC425,IADC435,IADC445,IADC525,IADC625, IADC635,IADC412,IADC415,IADC416,IADC422,IADC425,IADC427,IADC435,IADC436, IADC446,IADC447,IADC516,IADC526,IADC532,IADC535,IADC536,IADC542,IADC545, IADC547,IADC615,IADC622,IADC632,IADC635,IADC642,IADC645,IADC715,IADC722, IADC725,IADC732,IADC735,IADC742,IADC745,IADC825,IADC832,IADC835,IADC845 |
Available Sizes | From 2 7/8 inches to 36 inches larger sizes for the hole opener bit ,reamer bit |
Advantage | Most favorable price and best quality |
Bearing Type | Sealed bearing / non-sealed bearing / Metal sealed bearing / Rubber sealed journal bearing / Air cooled bearing |
Layer Details | Soft,medium soft, hard ,medium hard, very hard formation |
Application | oil well drilling, gas well drilling, geothermal well drilling, mining, geological survey, hydrographic survey, water well drilling, HDD pipelines installation projects, foundation rock piling projects. |
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Bit Size | API REG PIN | Torque | Weigt | |
INCH | MM | INCH | KN.M | KGS |
3 3/8 | 85.7 | 2 3/8 | 4.1-4.7 | 4.0-6.0 |
3 1/2 | 88.9 | 4.2-6.2 | ||
3 7/8 | 98.4 | 4.8-6.8 | ||
4 1/4 | 108 | 5.0-7.5 | ||
4 1/2 | 114.3 | 5.4-8.0 | ||
4 5/8 | 117.5 | 2 7/8 | 6.1-7.5 | 7.5-8.0 |
4 3/4 | 120.7 | 7.5-8.0 | ||
5 1/8 | 130.2 | 3 1/2 | 9.5-12.2 | 10.3-11.5 |
5 1/4 | 133.4 | 10.7-12.0 | ||
5 5/8 | 142.9 | 12.6-13.5 | ||
5 7/8 | 149.2 | 13.2-13.5 | ||
6 | 152.4 | 13.6-14.5 | ||
6 1/8 | 155.6 | 14.0-15.0 | ||
6 1/4 | 158.8 | 14.4-18.0 | ||
6 1/2 | 165.1 | 14.5-20.0 | ||
6 3/4 | 171.5 | 20.0-22.0 | ||
7 1/2 | 190.5 | 4 1/2 | 16.3-21.7 | 28.0-32.0 |
7 5/8 | 193.7 | 32.3-34.0 | ||
7 7/8 | 200.0 | 33.2-35.0 | ||
8 3/8 | 212.7 | 38.5-41.5 | ||
8 1/2 | 215.9 | 39.0-42.0 | ||
8 5/8 | 219.1 | 40.5-42.5 | ||
8 3/4 | 222.3 | 40.8-43.0 | ||
9 1/2 | 241.3 | 6 5/8 | 38-43.4 | 61.5-64.0 |
9 5/8 | 244.5 | 61.8-65.0 | ||
9 7/8 | 250.8 | 62.0-67.0 | ||
10 | 254.0 | 68.0-75.0 | ||
10 1/2 | 266.7 | 72.0-80.0 | ||
10 5/8 | 269.9 | 72.0-80.0 | ||
11 1/2 | 292.1 | 79.0-90.0 | ||
11 5/8 | 295.3 | 79.0-90.0 | ||
12 1/4 | 311.2 | 95.0-102.0 | ||
12 3/8 | 314.3 | 96.0-103.0 | ||
12 1/2 | 317.5 | 97.0-104.0 | ||
13 1/2 | 342.9 | 105.0-134.0 | ||
13 5/8 | 346.1 | 108.0-136.0 | ||
14 3/4 | 374.7 | 7 5/8 | 46.1-54.2 | 140.0-160.0 |
15 | 381.0 | 145.0-165.0 | ||
15 1/2 | 393.7 | 160.0-180.0 | ||
16 | 406.4 | 200.0-221.0 | ||
17 1/2 | 444.5 | 260.0-270.0 | ||
26 | 660.4 | 740.0-760.0 |