RAISE THE BOTTOM SASH ABOUT 5 INCHES AND HOLD IT STEADY. INSERT THE...
4. Raise the bottom sash about 5 inches and hold it steady. Insert the drill bit back
into one of the bottom sash holes and drill another hole about halfway through
the top sash. (The hole should be about 5 inches above the other hole you drilled
on the stile.) Without moving the sash, do the same thing at the other side of the
window.