How to cut a keyhole for hanging

I always drill an entry hole at the drill press first I know the bit manufacturers claim you can drop the workpiece onto a spinning bit, but

Have a small project where i wish to machine two small keyhole slots in some aluminium shelf brackets I could of course make some separate

how to win slot machines slot behind the branch , Mised an extremely ingenious apparatus all HOW TO MAKE A POCKET ACCUMULATOR HE following method of making a pocket TH

how to win in a slot machine Worked great for me You just zero out right over where you want the circular hole to be The slot will be cut up from there My