NC/L2-T4-step2.nc: cutting 15.2 min, feed in air 0.7 min (of it straight up/down 0.1), rapid 0.0 min
NC/L2-T6-relief-wide.nc: cutting 40.2 min, feed in air 6.4 min (of it straight up/down 0.6), rapid 0.1 min
NC/L2-T7-relief-slots.nc: cutting 292.5 min, feed in air 124.8 min (of it straight up/down 98.8), rapid 2.4 min
