I’ve used the 279 quite extensively and I’ll never go without it. I bought the 277 for all the smaller calipers. These are very high quality is made tools and will last you a long time. Be sure to grease the threads before use just for longevity. Take care everyone and thanks for watching. I make videos of real reviews. I actually use these first to put out a real review. You can’t make a review of something that is fresh out the package. That’s more of a first impression damn sure not a review. If you have any questions feel free to ask in the comments. I will respond to everyone.