Plenty of places on your frame could be considered "hard-to-reach", but some, more than others, present a serious challenge when you're trying to make adjustments. Park Tool's Utility Pick Set will make the occasions you need to do detail work significantly easier, with a set of three picks, each with a straight, hooked, and 90-degree end to allow you to choose what's best for your current situation. Minnesota-based Park Tool constructs each with a magnetic aluminum handle and a high-carbon steel end, so you can be sure that durability won't be an issue when you're working.