- 3000-1300 B.P.
- Examples have been found in Alabama, Kentucky, Illinois, North Carolin
- Addison Micro-Drill
- Time Period : 3000-1300 B.P.
- Location : Examples have been found in Alabama, Kentucky, Illinois, North Carolina, North Georgia and Tennessee. Named after the late Steve Addison who collected hundreds of examples.
- Shape : Lanceolate
Very small to medium size, narrow, slivers, flattened to rectangular in cross section. Theory is that this is the final form of a drilling process. The original form was flint slivers with sharp edges that were used as drills. As the sliver was turned in the drilling process, the opposite edges in the direction of movement began to flake off. As the drilling operation proceeded, the edges became steeper as more and more of each side was flaked. Eventually a thin, steeply flaked, rectangular drill form was left and discarded. Unique in that these micro artifacts are not made and then used, but are created by use, and discarded as the edges became eroded away by extremely fine flaking, thus reducing their effectiveness as a cutting edge.
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