punch in accordance with this standard must be designated by a code composed of the following symbols: a) The word "punch" b) The nominal value of the diameter of the body and the total length of the punch, both separated by the sign "x" ". c) The acronym "UNE" followed by the number of this standard. Example: Cylindrical punch with 60° conical head, body diameter D1 = 6.3 mm and total length L = 80 mm.