Getting very frustrated with the poor quality of grease gun end couplers. Most last only for a few zerks before grease is oozing out all over the place. Lincoln used to be our choice but now they've gone off shore for production and they're no better than the rest. It's so bad Lincoln doesn't even stamp their own name on their ends. They must be embarrassed. Can you get quality ends for grease guns made domestically? I don't care what it costs. Frustration and time wasting cost way more.