1.Cutting Structure of this type sealed and non-sealed tci tricone bits :
The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.
2.Gauge Structure of this type tci tricone rock bits :
Multiple gauge protection with gauge trimmers on the heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
3.Bearing Structure of this type tci tricone rock bits :
BIT SIZE | API regular pin | Recommended make up torque |
Inch | mm | Inch | KN.M |
3 3/4 | 95.3mm | 2 3/8 | 4.1~4.7 |
3 7/8 | 98.4 mm | 2 3/8 | 4.1~4.7 |
4 1/8 | 104.8 mm | 2 3/8 | 4.1~4.7 |
4 1/4 | 108.0 mm | 2 3/8 | 4.1~4.7 |
4 1/2 | 114.3 mm | 2 3/8 | 4.1~4.7 |
4 5/8 | 117.5 mm | 2 7/8 | 6.1~7.5 |
4 3/4 | 120.7 mm | 2 7/8 | 6.1~7.5 |
4 7/8 | 123.8 mm | 2 7/8 | 6.1~7.5 |
5 1/2 | 139.7 mm | 3 1/2 | 9.5~12.2 |
5 5/8 | 142.9 mm | 3 1/2 | 9.5~12.2 |
5 2/3 | 143.9 mm | 3 1/2 | 9.5~12.2 |
5 3/4 | 146.1 mm | 3 1/2 | 9.5~12.2 |
5 7/8 | 149.2 mm | 3 1/2 | 9.5~12.2 |
6 | 152.4 mm | 3 1/2 | 9.5~12.2 |
6 1/8 | 155.6 mm | 3 1/2 | 9.5~12.2 |
6 1/4 | 158.8 mm | 3 1/2 | 9.5~12.2 |
6 1/2 | 165.1 mm | 3 1/2 | 9.5~12.2 |
6 5/8 | 168.3 mm | 3 1/2 | 9.5~12.2 |
6 3/4 | 171.5 mm | 3 1/2 | 9.5~12.2 |
7 1/2 | 190.5 mm | 4 1/2 | 16.3~21.7 |
7 5/8 | 193.7 mm | 4 1/2 | 16.3~21.7 |
7 7/8 | 200 mm | 4 1/2 | 16.3~21.7 |
8 3/8 | 212.7 mm | 4 1/2 | 16.3~21.7 |
8 1/2 | 215.9 mm | 4 1/2 | 16.3~21.7 |
8 5/8 | 219.1 mm | 4 1/2 | 16.3~21.7 |
8 3/4 | 222.3 mm | 4 1/2 | 16.3~21.7 |
9 1/2 | 241.3 mm | 6 5/8 | 38~43.4 |
9 5/8 | 244.5 mm | 6 5/8 | 38~43.4 |
9 7/8 | 250.8 mm | 6 5/8 | 38~43.4 |
10 1/2 | 266.7 mm | 6 5/8 | 38~43.4 |
10 5/8 | 269.9 mm | 6 5/8 | 38~43.4 |
11 | 279.4 mm | 6 5/8 | 38~43.4 |
11 5/8 | 295.3 mm | 6 5/8 | 38~43.4 |
12 | 304.8 mm | 6 5/8 | 38~43.4 |
12 1//4 | 311.2 mm | 6 5/8 | 38~43.4 |
12 5/16 | 312.7 mm | 6 5/8 | 38~43.4 |
12 3/8 | 314.3 mm | 6 5/8 | 38~43.4 |
12 7/16 | 315.9 mm | 6 5/8 | 38~43.4 |
12 5/8 | 320.7 mm | 6 5/8 | 38~43.4 |
13 1/8 | 333.4 mm | 6 5/8 | 38~43.4 |
13 1/2 | 342.9 mm | 6 5/8 | 38~43.4 |
13 5/8 | 346.1 mm | 6 5/8 | 38~43.4 |
13 3/4 | 349.3 mm | 6 5/8 | 38~43.4 |
14 1/2 | 368.3 mm | 7 5/8 | 46.1~54.2 |
14 3/4 | 374.7 mm | 7 5/8 | 46.1~54.2 |
15 1/2 | 393.7 mm | 7 5/8 | 46.1~54.2 |
16 | 406.4 mm | 7 5/8 | 46.1~54.2 |
17 1/2 | 444.5 mm | 7 5/8 | 46.1~54.2 |
18 7/8 | 479.4 mm | 7 5/8 | 46.1~54.2 |
20 | 508.0 mm | 7 5/8 | 46.1~54.2 |
22 | 558.8 mm | 7 5/8 | 46.1~54.2 |
24 | 609.6 mm | 7 5/8 | 46.1~54.2 |
26 | 660.4 mm | 7 5/8 | 46.1~54.2 |
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