| 主权项 |
1. A drill bit including:
a main body portion including three legs extending therefrom, the three legs arranged around a periphery of the main body portion; a conical cutter rotatably mounted on each leg, the conical cutters positioned to allow a clearance between the conical cutter and the main body portion; a protrusion extending from the main body portion into the clearance wherein the protrusion includes a sloping surface, wherein the protrusion defines a plurality of paths to guide drill cuttings away from a base region of the main body portion past the legs, wherein the plurality of paths are substantially free of obstructions. |
