Overarm: The overarm bears the load on the spindle and arbor assembly. It's existing along with the column. It is also known as overhanging arm. The Wells-Index milling head is a way more sturdy and sturdy structure for significant chopping with most elements such as the spindle diameter, bearings, gears, https://ricardorrplh.pointblog.net/the-2-minute-rule-for-used-cnc-milling-machines-67958374