China API 9 1/2 Inch IADC 215 Milled Steel Tooth Tricone Bit for Water Well Drilling Rigs, Find details about China Tricone Bits for Sale, Tricone Bit for Well Drilling from API 9 1/2 Inch IADC 215 Milled Steel Tooth Tricone Bit for Water Well Drilling Rigs
Model | Tricone Bits |
IADC CODE | 116 126 137 216 226 316 327 336 115 135 215 225 315 335 121 131 346, etc. |
417 437 517 527 617 627 737 832 415 435 525 635 416 436 516 535 536, etc. | |
Available Sizes | From 2 7/8" to 26", larger sizes can be customized |
API Connection | 2 3/8 REG; 2 7/8 REG; 3 1/2 REG; 4 1/2 REG; 6 5/8 REG; 7 5/8 REG |
Bearing type | JM/JMT(metal sealed journal bearing) |
RM/RMT(metal sealed roller bearing) | |
JR/JRT (rubber sealed journal bearing) | |
RR/RRT (rubber sealed roller bearing) | |
FR(rubber sealed floating bearing) | |
Formation | Soft, medium soft, hard, medium hard, very hard formation |
Material | Alloy steel, Tungsten carbide |
Bit Size | API Connection | Recommended Parameters | ||
in | mm | Rotary Speed(rpm) | Weight on bit | |
8-1/2" | 215.9 | 4-1/2" API REG | 220~60 | 0.35~1.0 |
3-7/8" | 98.4 | 2-3/8" API REG | 220~60 | 0.35~1.0 |
9-1/2" | 241.3 | 6-5/8" API REG | 220~60 | 0.35~1.0 |
12-1/4" | 311.1 | 6-5/8" API REG | 220~60 | 0.35~1.0 |
First Digit (1~8): | |
-1, 2, and 3 designate STEEL TOOTH BITS with 1 for soft, 2 for medium and 3 for hard formations. | |
-4, 5, 6, 7 and 8 designate TUNGSTEN CARBIDE INSERT BITS for varying formation hardness with 4 being the softest and 8 the hardest. | |
Second Digit (1~4): | |
-1, 2, 3 and 4 are further breakdown of formation with 1 being the softest and 4 the hardest. | |
Third Digit (1~7): | |
This digit will classify the bit according to different bearing/seal type and special gauge wear protection as follows: | |
-1. Standard open bearing roller bit. | |
-2. Standard open bearing roller bit, air-cooled. | |
-3. Standard open bearing roller bit with gauge protection which is defined as carbide inserts in the heel of the cone. | |
-4. Sealed roller bearing bit. | |
-5. Sealed roller bearing bit with gauge protection on heel of cones. | |
-6. Journal sealed bearing bit. -7. Journal sealed bearing bit with gauge protection on heel of cones. | |
Feature Code: | |
The following codes are used in the fourth digit position to indicate additional features: | |
A: Air Application | |
R: Reinforced Welds | |
C: Center Jet | |
S: Standard Steel Tooth | |
D: Deviation Control | |
X: Chisel Insert | |
E: Extended Jet | |
Y: Conical Insert | |
G: Extra Gage Protection | |
Z: Other Insert Shape | |
J: Jet Deflection |