Bit size (in) |
O.D. (mm) |
O.D. of body (mm) |
I.D. (mm) |
Length (mm) |
String type connections | Near bit type connections | ||
Top | Down | Top | Down | |||||
6 | 152.2 | 121 | 51 | 1200 | NC38 | NC38 | NC38 | 3 1/2 REG |
6 1/4 | 158.7 | 121 | 51 | 1200 | NC38 | NC38 | NC38 | 3 1/2 REG |
6 1/2 | 165.1 | 121 | 51 | 1200 | NC38 | NC38 | NC38 | 3 1/2 REG |
7 1/2 | 190.5 | 159 | 57 | 1600 | NC46 | NC46 | NC46 | 4 1/2 REG |
7 7/8 | 200 | 159 | 57 | 1600 | NC46 | NC46 | NC46 | 4 1/2 REG |
8 1/2 | 215.2 | 165 | 71 | 1800 | NC50 | NC50 | NC46 | 4 1/2 REG |
9 1/2 | 241.3 | 197 | 71 | 1800 | NC50 | NC50 | NC50 | 6 5/8 REG |
12 1/4 | 311.2 | 203 | 76 | 1800 | 6 5/8 REG | 6 5/8 REG | 6 5/8 REG | 6 5/8 REG |
16 | 406 | 229 | 76 | 2200 | 7 5/8 REG | 7 5/8 REG | 7 5/8 REG | 7 5/8 REG |
17 1/2 | 444.5 | 241.3 | 76 | 2200 | 7 5/8 REG | 7 5/8 REG | 7 5/8 REG | 7 5/8 REG |
24 | 609.6 | 241.3 | 76 | 2540 | 7 5/8 REG | 7 5/8 REG | 7 5/8 REG | 7 5/8 REG |
26 | 660.4 | 241.3 | 76 | 2540 | 7 5/8 REG | 7 5/8 REG | 7 5/8 REG | 7 5/8 REG |
28 | 711.2 | 254 | 76 | 2540 | 7 5/8 REG | 7 5/8 REG | 7 5/8 REG | 7 5/8 REG |
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