Countersinking. A countersink Resource enters the workpiece axially and enlarges the top of an existing bore into a tapered opening. Milling machines discover uses in nearly every producing sector. Some typical industries that use these machines are: These machines also have ultra large voltages that can pose an electrocution hazard. https://shanemkdwx.mdkblog.com/32388009/getting-my-rice-milling-machines-in-sri-lanka-to-work