As mentioned probably best to chuck em , unless recoverable with scotchbrite or sos ,if there are any signs of corrosion or pitting after scrubbing the first one it's not worth your time . A great way to get quality hooks and some free gear (swivels, lead, corkies etc. ) is to keep your eye out on the rivers edge , anytime you see discarded fishing line pick it up , generally and hopefully terminal gear is attached . If you are on a budget it's a good way to get some cheap ( free ) gear , it also allows you to get new ideas on terminal tackle setups . Pack a small garbage bag with you as you hike and fish, sort it out at home , helps the environment , helps you . Buy or find a small file and resharpen your hooks , you're good to go.