Application
Tricone bits, which some may also call roller cone bits or tri-cone bits, have three cones. Each cone can be rotated individually when the drill string rotates the body of the bit. The cones have roller bearings fitted at the time of assembly. The rolling cutting bits can be used to drill any formations if the proper cutter, bearing, and nozzle are selected.
Milled tooth bits
1,Soft formations(114-117)
These bits are designed to drill the softest formations such as soft shales,red beds, and clays, with high durability and maximum penetration rates.
2,Soft to medium formations(121,124,126,134,136,137)
These bits are designed to drill formations such as shales, medium soft limestone, Medium sandstone and other formations with intermittent hard streaks.
3,Medium to hard formations(213,214,215,217)
These bits are designed to drill formations such as hard sandstone, dolomite, and broken formations with hard cherty streaks
Guidance of Tricone Bit Choice
| IADC | WOB(KN/mm) | RPM(r/min) | APPLICABLE FORMATIONS |
| 114/116/117 | 0.3~0.75 | 180~60 | Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc. |
| 124/126/127 | 0.3~0.85 | 180~60 | Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
| 134/135/136/137 | 0.3~0.95 | 150~60 | Soft to medium formations with low compressive strength and high drillability, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
| 214/215/216/217 | 0.35~0.95 | 150~60 | Medium formations with high compress strength, such as medium soft shale, hard gypsum , medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
| 227 | 0.35~0.95 | 150~50 | Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble,etc |
| Note: The upper limits of WOB and RPM in above table should not be used simultaneously. | |||
Guidance of tricone Bits ChoiceTricone Bits Tooth Type
Bits Size
| Bit Size | API REG PIN | Torque | Weight | |
| 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 | 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 | 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. | ||
| 12 3/8 | 314.3 | 95.0-102.2 | ||
| 12 1/2 | 317.5 | 96.0-103.0 | ||
| 13 1/2 | 342.9 | 105.0-134.0 | ||
| 13 5/8 | 346.1 | 108.0-137.0 | ||
| 14 3/4 | 374.7 | 7 5/8 | 46.1-54.2 | 140.0-160.0 |
| 15 | 381 | 145.0-165.0 | ||
| 15 1/2 | 393.7 | 160.0-180.0 | ||
| 16 | 406.4 | 200.0-220.0 | ||
| 17 1/2 | 444.5 | 260.0-280.0 | ||
| 26 | 660.4 | 725.0-780.0 | ||
Production Process
| Minimum Order Quantity | N/A |
| Price | |
| Packaging Details | Standard Export Delivery Package |
| Delivery Time | 7days |
| Payment Terms | T/T |
| Supply Ability | Based on Detailed Order |
