Correct option is A
A drill drift is a wedge-shaped tool used for removing taper shank tools (such as drill bits, reamers, and arbors) from the machine spindle. In machines like drill presses and lathes, taper shank tools are fitted into the spindle's Morse taper socket through self-locking action.
To remove the tool, the drill drift is inserted into the spindle slot and struck with a hammer, forcing the taper shank tool out of the spindle.
