| 摘要 |
A drill bit system, assembly, and method enables a user to quickly and easily interchange drill bits upon a shank during drilling operations. The drill bit system comprises an elongate shank, a series of drill bits, and a set screw. The shank has a notched, bit-engaging end. Each drill bit has a shank-engaging end and a bit axis. Each shank-engaging end has inner female structure for receiving the bit-engaging end and a threaded aperture. Each threaded aperture respectively extends from the inner female structure orthogonally relative to the bit axis, and each female structure has a substantially uniform inner bit diameter sized for receiving the shank. The bit-engaging end is receivable by the shank-engaging ends, and the set screw is threadably receivable by both the threaded apertures and the notch for removably and interchangeably fastening the drill bits to the shank.
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