bulb of percussion and compression rings.

Soft-hammer percussion

thumbSoft-hammer percussion involves the use of a billet, usually made of wood, bone or antler as the percussor. These softer materials are easier to shape than stone hammers, and therefore can be made into more precise tools. Soft hammers also deform around the sharp edges of worked stone, rather than shattering through them, making it desirable for working tool stone

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