29Pcs Drill Bit Set, 135° Tip HSS with Black and Gold Finish, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/2"

The case is cheap plastic. But I didn't buy them cause of the case. Good drill bits, I used 1 already for hardened steel no issues.Highly recommend

Received product in excellent condition. Metal case is strong, and all bits were in place and protected with foam from becoming dislodged from their separators/holders. All bits appeared brand new with sharp well-ground points, all were clearly marked with HSS material and their respective drill size or letter/number designation. Ti coating appeared to be uniformly applied to entire surface of bits. I’ve attached a few pictures of the package and bit set just as I opened it up; everything as advertised!I used the 7/32” bit mounted in my drill press to make 12 holes thru a 3/8” thick low carbon steel plate. The drill cut thru it like a clean sharp drill bit should. The bit never got too hot to touch, but I did use a cutting oil, and I rested a minute or two to lower the bit temperature before drilling each next hole. First impression is that these are really good bits for the money. I will update this review if my experience using other bits and materials is lessened in any way.

Inexpensive drill bits. Shank turned-down to fit 1/2" drill. The steel is a little soft and will damage the bits when drilling steel (works on soft steel but I wouldn't recommend for high-carbon steel). The bits are sharp.

Good seller, purchase was shipped on time, quality good, would buy again.

I normally buy good name brand bits. But I was needing some to do some wood working. I bought these and happen to need to uses them to drill some hole in my trucks frame. I figured good test for them. I think these are better than the name brand one. And I'm picky when it comes to tooling. I know there will be more ordered soon. I liked.

Nice little kit to have.

If you want to drill one thing for cheap, then go ahead. But after you drill one thing (a metal screw in my case) the drill bit is effectively useless.

I needed an inexpensive set of small cobalt bits to take with me to help a friend who lives across state. They had an exterior commercial steel door that was frozen shut. After cutting off the hinges, I needed to drill out 24 stainless steel screws. I had considered this set of bits to be disposable and hoped to make it through the 24 screws using several of the included bits. I had no lubricant available to ease the drilling. The single drill bit that I used cut through the stainless screws--dry, mind you--like I was drilling in aluminum. The bit never even got hot. I have some very high-dollar cobalt bits and these inexpensive bits performed way better than they had any right to.I recommend them most highly!