I purchased a cylinder head milling machine https://machtrade.us/category/repair-equipment/engine-block-repair-machines/boring-machines/ a few months ago and it just blew me away with its performance and backside. With it, I can easily perform various operations such as sports panels, valve adjustment and many others. The milling cutter works silently and very stably, which allows you to get perfectly flat surfaces. I am very happy with this purchase, it has greatly simplified my work.