Hejian Zhongman Petroleum Drilling Equipment Co., Ltd. is a professional company, specialized in the tricone bit, pdc bit and other drilling equipments for the various drilling application. Our main products are tci tricone bit, steel tooth bit, pdc drill bit with all sizes and codes. Welcome your any inquiry. Our staff will get back to you as soon as possible.
Specifications:
Size IADC Code API Regular Pin (in)
in mm
3 7/8 98 126 617 2 3/8
4 5/8 117.5 121 241 527 2 7/8
4 3/4 120.6 241
5 5/8 142.9 121 241 321 537 3 1/2
5 7/8 149.2 241 321 517 537 547 617 637
6 152.4 211 216 246 437 517 527 537 547 617 637
6 1/2 165.1 517
7 1/2 190.5 121 124 134 217 244 517 527 547 617 4 1/2
7 7/8 200 121 124 131 134 241 321 517 527 547 617
8 1/2 215.9 114 116 117 121 124 126 127 131 134 137 211 216 217 241 247 321 437 447 517 527 537 547 617 637 837
8 3/4 222.2 127 417 437 447 517 537 617
9 1/2 241.3 117 124 125 127 437 517 527 537 617 637 6 5/8

9 5/8 244.5 114 121 124 131 1