Discussion
Which of the following drill machine can drill numbers of workpiece at a time
Answer: C
The answer is the Multi station drill machine.
A multi-station drilling machine holds several workpieces at once, each in its own fixture at a station on an indexing table or transfer line. All the stations work at the same time, and at each index every part moves on to the next station, so several workpieces are drilled together and a finished part comes off at each cycle.
A gang drilling machine is a row of independent single-spindle columns on a common table; it is meant for a sequence of different operations (drill, ream, tap) on a job moved by hand from one spindle to the next. A pillar drill has a single spindle and drills one workpiece at a time.
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