Hi ftwow...welcome to TSF!!
With any luck you may not have damaged the armature (the portion that spins) in your motor. The parts you have noted in the picture are the brushes.... there should be no metal plate coming into contact with the armature. The brushes are made of carbon and do wear out (I've replaced many in my power tools). If not replaced before the spring makes contact with the armature the result will be motor failure and, most often, an expensive repair.
Part #242274-00 for the brushes @ $1.75 ea
Part #242028-08 for the armature @ $113.00
If you are not familiar with electric motors I would suggest you find a local service center.