Self-centering drill bit, makes centering a hole in hardware so easy a kid can do it. These are widely available from various manufacturers, this is a #9 from Vix-Bits. | Stene Woodwork

Self-centering drill bits. These are extremely useful for all kinds of door hardware installation. You may be able to pre-drill freehand a percentage of the time, but you’re bound to miss sometimes too. This is a really simple way to insure perfect pre-drilling for a number of applications. They’re available at Lowe’s and Home Depot. Usually come in a pack with more than one size. | Justin Metzler