Given details ,of the motor, someone on here will be able to provide deatils of how to reverse the motor.
Hopefully, the terminal box will have sperate terminals for the start and run windings (Assuming that it is a domestic mains, single phase motor)
If it has drum type reversing switch, it is recommended to use a separate On/Off switch, using the drum switch purely for changing the direction of rotation, when the motor is stationary.
Which will lead onto the warning , if the chuck is a screw on variety, about the risks of running in reverse, and loosening it.
Belatedly, Welcome to the Forum!
Howard