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

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.

One doesn't need extra long drill bits but it sure is handy to have some. I've used a couple of these a couple of times and they made life a lot easier. No complaints.

Good price and delivered on time

Sharp and short enough to fit into tight spots

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

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

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.