NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set for Stainless Steel & Hard Metals, with 1/4" Hex Shank for Quick Chucks & Impact Drivers, SAE Sizes 3/32"-1/8"-3/16"-1/4"-5/16" in Storage Case

These are the best cobalt drill bits at this price point that I've ever come across. They drill through even chromed steel and stainless with zero hesitation. Of course, drill bits do lose their bite and wear down but these have been going strong for me with regular use for about 6 months now.

Good quality and value. Worked great in a tight spot.

Great little kit. I’d definitely buy again and a bigger set! They are super sharp and drilled right through the stainless!

I tried using Ryobi bits for metal and all of those snapped despite keeping them cool with fluid and not applying much pressure trying to get through a steel crash bar ( which is designed to crumple ).I also tried self-tapping screws meant for metal, and other drill-bits. They didn't work but this product did. I did have to use the smaller size and then go up in size to where I needed to be, but they got the job done. Hopefully I won't have to buy again because of the price. Hopefully they'll last me for many years.

They stayed sharp, even though I was drilling some hard metal

I ordered these drillbits because they were supposed to be good. I was drilling out a bolt from an aluminum head and needed it to be a straight in drill hole. These bits skipped across the bolt and wouldn’t begin to drill. Went to the hardware store and bought some three dollar Irwin Drill bits and the job is complete. These bits are junk.

Not for hard steel. Sheared two bits.

A good product,, the seller was prompt in delivery