21Pcs Cobalt Drill Bits Set, M35 HSS, 135 Degree Tip, Twist Jobber Length Drill Bit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Metal Indexed Storage Case 1/16"-3/8"

working well for the few things I've used them for so far. cut quickly and cleanly. nice metal box to keep them in and organized as well.

Nice, inexpensive set of drill bits. They're not very long, so make sure you know what you're getting. They're nice to have as replacements for others that I have broken so they fit my need perfectly. I'm not expecting to drill through diamonds with them...

Bit’s are sharp and appear to hold an edge; I have only used two Bits out of the index and both worked well. Index box is thin and deforms easily, latch is not trustworthy. Good bits, poor quality box.

Worked perfect as advertised.

Well i broke one bit, but for the money they're pretty solid considering im going through cold rolled steel thats a 1/4" thick. Also, if youre going through any solid metal such as steel, dip the bits in oil at the tip to help with the heat

I went through several bits from another set when trying to drill through a metal plate. These went through without breaking and without slipping. Pleased with this purchase.

They work great at a great price

First time I tried to drill a 3/8" hole into a pipe with a cordless drill, the bit snapped in half on me. Not sure if the integrity of these bits can actually handle drilling through metal.