The laser shines in exactly the opposite dirrection of the drill bit.
Accurate to 1/4 degree.
Absolutely invaluable for any on site drilling, as it proved in each of the projects pictured on the left.
The laser guide instructions to follow match up with the bottom picture.
Mark the center point for each hole to be drilled.
Place a 1/2" diameter drill bit into the drill.
Put the drill point on one center point as you shine the laser at the opposite point of entry.
Drill the 1/2" hole to the necessary depth.
Repeat the process for each hole.
For angled holes such as with a stairway, start the full size hole with a hole saw that is fitted with a 1/2" diameter smooth shaft follower. Example: for a 2 1/4" hole, start with a 2 1/4" hole saw to keep the more aggresive bit from chipping out a big chunk of wood.
Using a sharp Milwaukee self feed bit fitted with a "brazed in" 9/16" diameter fine thread lead screw, drill the hole to full depth.