| 摘要 |
A drill bit includes a drill bit body and first and second blades formed on the drill bit body. The first blade has first cutting elements defining a first profile length and an adjacent first gauge section having a first gauge length. The second blade has second cutting elements defining a second profile length and an adjacent second gauge section having a second gauge length which is shorter than the first gauge length of the first blade. Certain ones of the second cutting elements on the second blade rotationally overlap with a portion of the first gauge section on the first blade.
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