I bought these mainly to maintain my tools such as applying grease to joints, boiled linseed oil to wood handles, oiling leather sheaths, etc. These absolutely do the job. Much more manageable than the paper towels I would use in a pinch. I usually try to wait until warmer weather to work on my car, so I still haven't had a chance to use these for mechanical work but I have a good feeling that these will hold up better than the usual blue garage towels I have used in the past.