It is difficult to machine inner radii smaller than ______ and outer radii less than ____ in ECM.

It is difficult to machine inner radii smaller than ______ and outer r

1.	It is difficult to machine inner radii smaller than ______ and outer radii less than ____ in ECM.
A.	0.1 mm, 0.2 mm
B.	0.5 mm, 0.8 mm
C.	0.8 mm, 0.5 mm
D.	0.2 mm, 0.1 mm
Answer» D. 0.2 mm, 0.1 mm