Type	Dimension(mm)
	i	t	s	r
PMA5	5	3	2	2
PMA6	6	4	2.5	2.5
PMA8	8	5	3	3
PMA10	10	6	4	4
PMA12	12	8	5	5
PMA16	16	10	6	6
PMA20	20	12	7	7
PMA25	25	14	8	8
PMA32	32	18	10	10
PMA40	40	22	12	12
PMA50	50	25	14	14