By Denis Renaud
I always keep a small container of cutting oil and small acid brush at the lathe and milling machine. To prevent them from getting knocked over and making a big mess, I use two plastic yogurt containers, sized so one container fits into the other.
In the first container I place a strong magnet, the type scavenged from a defunct computer hard drive, and then I place the second container into the first and fill it with cutting oil.
Not only will the magnet hold the oil container in place, but when I dunk the acid brush into the oil the magnet pulls the metal chips out of the bristles. Before refilling with oil, cleaning is a snap. You don’t have to remove any metal chips from the magnet, just dump them out of the second container and wipe clean.
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