The coating is falling off of my driver bits!

I have a iFixit Moray screwdriver kit. They started to rust, and the coating came off! Is there anything i can do or do i just have to buy a new set? (They were bought more than a year ago and from best buy).

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2947414:01crwdne2947414:0:

I've forward your issue to the iFixit Store staff. In the mean time take some pictures of the damage also where a-bouts do you live?

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0