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Message: <blockquote data-quote="Terryl" data-source="post: 972137" data-attributes="member: 369937">The trick to using a small diameter tap is to get the feel of it, when you feel it start to bind up then back off, then start again, when it bits and starts to bind back off, 3 in 1 oil will help with steel or aluminum, on plastic or nylon use liquid dish soap straight out of the bottle, or a bit of bar soap with a drop or two of water (or spit) on it.But the main trick is to keep backing off on the tap, this will break off the shavings but be careful in doing this as it can bind up both ways, I have had very good luck doing 2 MM (#2 us screw size) taps like this for years, the trick is to get the feel of it.And don't go cheap on a small tap and die set, you will have better luck.</blockquote>