Do these bolt directly to the factory mounting points?

Yes. These mount at factory suspension attachment points with no drilling required. You'll use the existing hardware on your vehicle.

What tools do I need to install these?

Basic hand tools and a jack or lift. You'll also want to check your suspension geometry afterward — an alignment is recommended after any lower control arm replacement to restore proper ride height and tire wear patterns.

Are these sold as a pair or individual arms?

You're getting a pair — both rear lower control arms in one kit. Pair replacement is the right way to do it for even suspension response.