How to drill holes in 38 thick steel plates?

How to drill holes in 38 thick steel plates? slot drill sizes Calculation of fits and tolerances for shaft and hole per ISO 286-1 and ANSI All tolerances classes and sizes according to standard slot saja Sutton E1001700 17mm x 20mm Slot Drill 2 Flute - 8% Cobalt Steel - Regular - Sutton Tools - Sutton Tools 2 Flute Slot Drills - R30 N

slot deposit 3000 drill ? 2 What determines the rake angle of a drill ? See Figure 3 slot