As machined: With no area cure processing solutions, the parts will leave obvious tool marks and burrs, which can be completed immediately and value-saving. The holes may be for parts assembly or aesthetic purposes. CNC drill presses can create different-sized holes by various the scale on the drill bit. https://cristiantixle.rimmablog.com/33828601/an-unbiased-view-of-precision-metalworking-lathes