Which of the following is the best method for drilling, 1 mm hole in g – McqOptions

MCQOPTIONS

1.	Which of the following is the best method for drilling, 1 mm hole in glass?
A.	Laser drilling
B.	Garbide tipped drilling
C.	Plasma arc drilling
D.	Ultrasonic machining
E.	Electron beam drilling
Answer» E.

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