Tapping 500 bores – AL Aluminum

                    Machining Condition      : Spindle - Belt type, BT40-8,000 rpm

                                                             Spindle Motor - 7.5 / 11kw

                    Tool                                   : 0#80UNF

                    Spindle rotating speed  : 1,200 rpm

                    Feeding                            : 381 mm/min