Turk's head rolls

Turk's head rolls

[′tərks ¦hed ‚rōlz]
(metallurgy)
A group of four idler rolls, arranged in a square or rectangular pattern, through which strip metal can be drawn to form angled sections.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.