[De]
A stoneworking technology applied to isotropic materials such as fine stone and flint where a stone, bone, or wooden hammer is used to detach flakes in a controlled way in order to shape the material being worked. Direct striking of the core with a hammerstone tends to give thick bulbous flakes; with a cylindrical (bone or wooden) hammer the flakes produced are thinner and flatter. Indirect percussion, also known as punch flaking, necessitated the use of a bone or wooden punch between the hammer and the core, controlling the precision of flaking.
