Otwór wyrównawczy, średnica [cal]

•  1 1/2 in (1)
•  1 1/4 in (1)
•  1 in (7)
•  2 1/4 in (1)
•  2 in (1)
•  2/5 in (7)
•  3 in (1)
•  3/5 in (8)
•  4 in (1)
•  4/5 in (6)