Manufacturing And Production Technology
In a milling operation, two side milling cutters are mounted with a desired distance between them so that both sides of a workpiece can be milled simultaneously. This set up is called

Gang milling
Side milling
Straddle milling
String milling

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Manufacturing And Production Technology
In centreless grinding, work place centre will be

Below the line joining the two wheel centres
Above the line joining the two wheel centres
On the line joining the two wheel centres
At the intersection of the line joining the wheel centres with the work place plane

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