Discussione fori core per pressacavi: 7-10,5 (M12 x 1,5) -14.5 (M16 x 1,5) (3)
per applicazioni generali di ingegneria: 9, 12, 15, 18, 21, 24, 27, 30, 33, 36 mm (3)
per il foro PG-through: 12.5 (PG7), 15.2 (PG9), 18,6 (PG11), 20.4 (PG13.5), 22.5 (6)
per PG foro centrale: 11,4 (PG9), 17.25 (PG11), 19 (PG 13,5), 21.25 (PG16), 26.75 (PG 2 (3)
4, 5, 6, 7, 8, 9, 10, 11, 12 mm (6)
4, 6, 8, 10, 12, 14, 16, 18, 20 mm (6)
6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 mm (6)
6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36 mm (3)
7, 10,5, 14,5, 18,5, 23,5, 30,5, 32,5 millimetri (3)
12, 13, 14, 15, 16, 17, 18, 19, 20 mm (3)
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 mm (3)
30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 mm (3)
40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 mm (3)
50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60 mm (3)