parrellelret
Parallel retouch type is the detachment of long, thin, evenly spaced removals (Bordes 1961, 9-10; Tixier, Inizan and Roche 1980, 92). This is normally considered to be restricted to use in producing more elaborate tool types, such as daggers or knives. ​

This type of retouch can be applied to produce a number of special effects, particularly when it is placed obliquely, transversely or in the form of a chevron.