Wife found these nice little shelves on Craigslist. They have these hanger slots cut in them. I have a couple other things I'd like to have slots like these. What do I need to make them? Is there a bit that can be used on a drill, or would I need a router? (I don't have a router)
Simple. All you need is a couple of basic tools.
1. Drill a hole slightly larger than the screw head you'd use to hang the item. That's the big hole in your picture.
2. Drill a hole slightly larger than the screw body right above the previous hole where the top of the slot should be. Use this drill bit to clear the material between the two holes to create the slot.
3. Use a file to clean up the slot.
4. Lower a dremel sawing bit to the bottom of the large hole and cut up into the slot to create the cavity that the screw head will rest in.