Model 

..........X

..........Y

EI-28

......28 mm

......25 mm

EI-35

......35 mm

......29.5 mm

EI-41

......41 mm

......33 mm

EI-48

......48 mm

......40 mm

EI-54

......54 mm

......45 mm

EI-57

......57 mm

......47.5 mm

EI-60

......60 mm

......50 mm

EI-66

......66 mm

......55 mm

EI-76.2

......76.2 mm

......63.5 mm

EI-78

......78 mm

......65 mm

EI-85.8

......85.8 mm

......71.5 mm

EI-95

......95 mm

......82.5 mm

EI-96

......96 mm

......80 mm

EI-102

......102 mm

......89 mm

EI-105

......105 mm

......87.5 mm

EI-111

......111 mm

......96.5 mm

EI-114

......114 mm

......95 mm

EI-120

......120 mm

......100 mm

EI-130

......130 mm

......113 mm

EI-133

......133 mm

......111mm

EI-171

......171 mm......

..... 142.5 mm.