Answer Posted / arul - mz

Whatever Mr. Raghunath shared is 100% right.
But to be more clear to students like me....

1) If u drill a plate, if the drill bit is not placed
perpendicular to the surface, the error that can occur is
called RUNOUT. i.e., Tilt of axis of drill of hole will
lead to RUNOUT.

2) If u locate the centre of the hole wrongly over the
plate to be drilled and continue m/c., u will get
concentricity. i.e., change in location of the hole centre.

Hope I have cleared better... :-)

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