pressure
Pressure flaking is the process of forming an artifact by removing surplus material, in the form of chips and flakes, by a pressing force rather than by percussion (Crabtree 1982, 49).

Pressure flaking involves removing flakes from the edge of a tool by pressing against it, usually with an antler or bone tool, instead of striking it. Pressure flaking is generally used for the final retouch on tools that were begun by other techniques." Whittaker 1994, 33.
pflake