d 1 (mm) L (mm) l 1 (mm) l 2 (mm) W (mm) CSEL 6.3×0.8 - 18.8 7.7 8.1 6.3 1-2.5
d 1 (mm) L (mm) l 1 (mm) l 2 (mm) W (mm) CSE 6.3×0.8 3.7 20 7.7 8 6.3 1-2.5