Countersinking. A countersink tool enters the workpiece axially and enlarges the best of an present bore right into a tapered opening. Straddle milling uses two finish mills mounted on two different sides of the same arbor. This provides the chance to work on two different workpiece surfaces at the same https://johnathanlerco.elbloglibre.com/26825581/not-known-facts-about-cnc-milling-machines