For the people scrolling for the pictures, the numbers on the drill indicate how far into the wood you want the screw to go, set lower so it stops with a bit st

For the people scrolling for the pictures, the numbers on the drill indicate how far into the wood you want the screw to go, set lower so it stops with a bit sticking out (to hang a frame on let's say) or set it higher to drive the head into the wood for a flush surface. Different kinds of threading and woods make any kind of chart for this nonintuitive, you just gotta eyeball it and learn. The bit on the end of a tape measure is similarly designed and ignored.