NEIKO 10218A Countersink Drill Bit Set for Wood and Metal, 1/4” Tri-Flat Shank, 5 Piece Countersink Bits, M2 High Speed Steel

Nice quality. Worked will and very sharp. Went through two adjacent 2x6 boards like a knife through butter.

Worked perfect for what I needed. I had a tight space. Used successfully to drill through boat fiberglass.

I LIKE THE DRILLS. THEY ARE OF GREAT VALUE WHEN NEEDING TO DRILL LONG HOLES.

I haven't really had a problem with any of the Nico stuff that I have purchased from Amazon. But these I did send back. Just personal preference but they did look like they were okay quality. Some drill bits that I've bought from here were just junk they would spin the first time you put them in anything including soft wood. These did not look like they were manufactured like that.

Not much to say other than these drill straight and quick. Not as many bits as some other sets but it has popular sizes. Comes in a little pouch which is a nice little feature.

These are very good quality countersink, mine have had no issues with metal. They cut clean and smooth. I would recommend them and Amazon has an excellent price on them.

I have a cordless, USB charged screwdriver with 1/4 hex head attachments that I keep in my desk drawer. I wanted to be able to drill pilot holes through thin materials (wood, 1/8" acrylic sheet) without going out to my garage and grabbing one of my larger drills and searching for drill bits (ADD roommate shares the tools in the garage and rarely puts the bits back in their slots).These bits worked wonderfully for my intended purpose. They securely fit into my cordless screwdriver and easily drilled through 1/8" acrylic sheet without cracking it. They also drilled into MDF easily. I've added these drill bits into the case that holds my cordless screwdriver and screw bits and I know this will save me a lot of time on my small projects in the future. It will also result in much less frustration with my roommate, at least in this regard. A definite win.

Nice looking countersinks. They are sharp and do well in wood and plastic material. Not so working with mild steel. Using them in drill press there is a lot of chatter and uneven cutting. You will not get a nice smooth bore.