What size angle grinder should I get to effectively complete my intended tasks? Given the myriad of options available on the market, how do I determine the best fit for my specific needs? Should I opt for a smaller, more nimble grinder that might excel in precision, or would a larger model offer the robust power required for heavy-duty applications? As I contemplate this decision, I find myself considering various factors, such as the materials I plan to work with and the frequency of use. Would a 4.5-inch grinder suffice for occasional DIY projects, or is it prudent to invest in a larger 7-inch model for more extensive professional endeavors? Furthermore, is there a significant difference in performance between different sizes that I should be aware of? Ultimately, how do various sizes impact safety, maneuverability, and overall efficiency? What insights can seasoned users provide that may aid in this process?