Name:  IMG_20170813_193507.jpg
	Date:  2017 Aug 13
	Size:  0.80MB
	----------------


    Poke the holes
    and awl or prick punch or sharp nail 
    to carefully locate the center of the X's.
    Followed by a heaver conical punch 
    to form a divot at least as wide 
    as the drill you are using.

    In this case the stub of carriage bolt 
    ground to a point makes a fine divot maker.