Here is a guide I made to determine wood screw gauges that also lists the pilot hole size recommendations for softwood and hardwood. The holes are the actual diameter of the shank or widest part of the thread, and the fractional values listed are to the nearest 64th of an inch. There are two cases where the nearest fractional values are the same, but the hole size is actually different (#3 and #4 are both listed as 7/64", but in reality, #3 is 0.099" and #4 is 0.112"; and #9 and #10 are both listed as 3/16", but in reality, #9 is 0.177" and #10 is 0.190").
You can elect to either score or engrave the text. Scoring is what I have done, and it is much faster than engraving.