The AutoDrill feature provides a perfect solution for hole-drilling and side-milling with longer end-mills. SpiderCool users also find this feature to be very beneficial for emulating a fan nozzle and improved chip evacuation. You might also consider AutoDrill to be an electronic fan nozzle. AutoDrill allows you to set upper and lower coolant positions for any individual tool. The coolant stream will continuously sweep between the preset positions, providing excellent coolant coverage over the full cutting length rather than a single point.