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Title: Don't waist you time and money.
Review: Cheap! Don't waist you time and money. These grease zerts are not tapered thus they screw all-the-way into the fitting and are not tight. The threads are not machined to high tolerances. This lets the grease to come out around the threads where they screw into the fitting. They look like a bargain but you get what you pay for. I couldn't get any of them to work in any equipment from a hay bailer to my grandson's China made go cart. I purchase both the ASE & metric.
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