Quick Answer
Pressure flaking is preferred over percussion flaking due to its precision and control, allowing for more complex and delicate tool designs. It involves applying direct pressure to the stone to remove small flakes, resulting in a more refined edge. This technique is ideal for producing high-quality arrowheads and blades.
Precision and Control
Pressure flaking offers a level of precision and control that percussion flaking cannot match. By applying direct pressure to the stone, knappers can remove small, controlled flakes that would be impossible to achieve with a hammer. This precision is especially important when working with high-carbon-content stones, which are notoriously brittle and prone to cracking.
Edge Quality
The controlled nature of pressure flaking also allows knappers to create a more refined edge on the tool. By carefully removing small flakes, knappers can create a sharp, even edge that is perfect for cutting and slicing. This level of edge quality is essential for high-performance tools like arrowheads and knives, where a razor-sharp edge is critical.
Tool Production Time
While pressure flaking may require more time and skill to master, it can actually be faster than percussion flaking in the long run. With practice, knappers can remove small flakes quickly and efficiently, allowing them to produce high-quality tools in a fraction of the time it would take with percussion flaking. This is especially important for large-scale tool production, where efficiency is key.
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