| Customized: | Customized |
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| Standard: | DIN, JIS, AISI, API |
| Length: | Taper-length |
| Samples: |
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| Customization: |
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| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier
| Basical Specification | |
| Size of Rock Reamer | 20 Inch |
| 508mm | |
| Cutter Type | Elastomer sealed bearing cutters for 8 1/2" tricone bit |
| Thread Connection | NC50 |
| IADC Code | 637 |
| Bearing Type | Elastomer Sealed Bearing |
| Roller Cutter Quantity | 5 |
| Overall Length (mm) | 1600 |
| Operating Parameters | |
| WOB (KN/mm) | 0.3~0.85 |
| RPM (r/mim) | 180~60 |
| Formation | Hard formations for high compressive strength,such as sandstone,hard shale,dolomite,hard gypsum,chert,granite,etc. |
| Specifications | |
| Cutter Size | 133mm |
| Bearing Type | Metal-face Sealed Bearing |
| Grease Lubrication | Available |
| Grease Compensation System | Available |
| Inserts Shape | Conical-ball |
| Operating Parameters | |
| Application | Hard formations with high compressive strength,such as sandstone,hard shale,dolomite,hard gypsum,chert,granite,etc. |
| Basical Specification | |
| Size of Rock Bit | 9 1/2 inches |
| 241.3 mm | |
| Bit Type | Tricone Roller Cone Bit |
| Thread Connection | 6 5/8API REG PIN |
| IADC Code | IADC 637G |
| Bearing Type | Journal Sealed Bearing with Gauge Protection |
| Bearing Seal | Elastomer/Rubber or Metal |
| Heel Protection | Available |
| Shirttail Protection | Available |
| Circulation Type | Mud Circulation |
| Drilling Condition | Rotary drilling,high temp drilling deep drilling, motor drilling |
| Operating Parameters | |
| WOB (Weight On Bit) KN/mm | 0.5-1.2 |
| RPM(r/min) | 40-80 |
| 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 26 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 |
| Button Size/Extra Features | Button bit teeth:1) Y-Conical teeht 2)X-Chisel teeth 3)K-Wide teeth 4)Spoon tooth 5)Spherical Tooth |
| Material | Alloy steel ,Tungsten of Carbide |
| 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. |
| 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 | ||
Suppliers with verified business licenses
Audited Supplier 
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