Also, drill bits used for this process element two spiral channels. These channels, also known as flutes, evacuate the swarf or chips outside of the opening as being the drill little bit progresses into the material. ECM, often called reverse electroplating, eliminates components rather than including them, contrary to electroplating. https://cnc-router49246.estate-blog.com/26345231/drill-machine-things-to-know-before-you-buy