Dont kow about EZ Locs, but Helicoil kits come with all the tools you need to do the job. You'll probably need a drill motor and tap handle. Drill out the hole that needs rethreading with the small drill. If it goes all the way through, that's fine, but if you have a hole with a bottom, You should get a drill stop for the bit. This is a collar that has a set screw to clamp onto the bit so the bit can only go as deep as the collar lets it. After drilling, blow the shards out of the hole, then run the tap into the hole. A little oil in the hole will help the drill. Turn the tap in a couple of turns, then back it out to get the scrap aluminum out then turn it in a couple of more turns and repeat, continue until the tap gas either come out the other side or hits bottom. Blow out the cuttings again. Put the insert on the insert tool and screw it in go down into the hole a thread or so, then back out the tool. Reach into the hole with a a pair of needle nose pliers, if the hole is big enough, or if not, a small screwdriver and break the little tang off that is across the bottom of the hole. Clean the hole out of any debris. You're done.
Bare