12-Piece Tapered Drill Bit Set - High-Speed Steel Woodworking & Metal Drilling Tools for DIY Projects, Home Repair, and Professional Use

This countersink may seem a bit expensive but they are worth the money. I purchased a set of these about 10 years ago and as a wood worker I use them a lot. The bits seem to have a double taper and with the adjustable countersink they can be adjusted to most any screw. They have worked flawlessly for me and the only reason I have purchased the recent replacement set is because I dropped my cordless drill a couple times and broke several of the drill bits. I tried replacing the broken bits with cheaper box store replacements and quickly realized you get what you pay for, thus the recent purchase. I have set thousands of screws in different projects and remodels over the years and these drill bits have worked well for me. I have not used the plug cutter in the set very much and have no opinion as to it's performance. If I had any complaint I guess it would be that I wished it came in a more durable storage box.