AMOOLO Cobalt Drill Bit Set 31Pcs (1/16"-1/2"), M35 High Speed Steel Metal Drill Bits Jobber Length for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood

This kit is one of the best sellers on Amazon with numerous decent reviews. So it was a no brainer to get one slightly used at a good discount.I'm assuming someone got it for about $30 plus tax, used a couple of bits. One was still covered in a plastic debris, the other one a bit scratched but that doesn't impact its quality for me. And finally it has been returned to Amazon for reselling it to me for $22. I wonder how much the shipping was for the original buyer ;-) Sorry, I'm not here to judge. But it definitely made me smile

I bought these while waiting for a set of American made cobalt bits to come in to drill out hardened pins and some steel plate. They did a very nice job and I was very pleased with the bits.

decent durability for the money. certainly not as hardy as a brand name bit but easily 10 bits last longer than 2 of the name brand at similar cost

Good quality at a reasonable price, Thank You

Make holes on stainless steel

Very nice drill set that cuts thru metal and is easy on the wallet

Consistent lengths and very nicely machined. The flutes are all smooth. The carrying case is very sturdy, making this entire set a convenient assortment to have in my toolbox and in my shop. I prefer cobalt for the durability and find the price differential is well worth it. I sharpen my own bits, so I do not prefer titanium-plated ones.

I'm always suspicious of not name brand tools. I needed these in a hurry and figured what the heck. Well I have been surprised in the quality of the product. I'm drilling 1 1/2' square tubing and these bits are doing the job. No complaints. Good quality. I would buy again.

Excelente brocas para metal duro y diferentes tamaños para el uso de trabajo.

So I work a job were I have to drill through 2 - 2&1/2 inch hardend and forged steel but more commonly use it for mild steel up to 1/2" thick these bits are great for both applications they don't temper easily which means they don't dull as quick while going through forged steel definitely worth the money

well only used one for thin metal worked well

Unfortunately I had to send back as I need a different size

ça fonctionne très bien pour le moment