... ;12 Rigid tapping function ;13 Electric handwheel14 RS-232 interface15 Transformer (subject to CNC and market)16 Genova drum type ATC (10 ... , 16, 20 tools subject to machine model), turret type ATC for model DTC-540L17 Working ... , 12000rpm, 15000rpm2 Arm type ATC (16, 24, 32 pcs subject to machine model)3 Central oil coolant for the spindle4 Coolant ...