I have a set of metric chrome Gearwrench, They came with a rail and have done me well so far. I think, I bought them around the first of the year and used them about ten or so times and been very pleased. They are a life saver for under dash stuff. I have a set of chrome S&K, SAE, I bought back in 1992 and they have been great too. But a new set of Metric S&K were like a 150.00 bucks, I think the Gearwrench were somewhere around $80.00-$85.00. As far as the angle question never had a issue, If I cant get one of my swivels on the fastener I'm in trouble. But I have a large collection of extensions and a nice S&K flex ratchet which have always helped me. Good luck with your decision.