Neiko 10052A Spot Weld Drill Bits, High Speed Cobalt Steel with Titanium Coating | 8mm (5/16-Inch)

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.

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.

It's surprisingly hard to find stubby drill bits anymore at store. If you are like me an needed a quick and low cost option to reach a tough spot, these work. They are not that sharp and had a hard time biting into the Stainless bolt I was trying to drill out. With that said, they did the job, didn't break, and are still usable.

good solid

Nice and sharp, work really well. highly recommended to all my fellow wood workers.

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.

Nice set, comes in a nice box to keep everything from getting lost

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.