Bosch Professional 2608587014 19-Piece HSS-Cobalt ProBox Metal Drill Bit Set (for Stainless Steel, Accessories for Drill Drivers), Gold, 1mm-10mm

Awesome drill bits. Drilled through alloy and metal with ease. And it has the sizes and Bosch stamped on the drill bits.

Good sharp bits at a great price, don't get too hot and cut well, cutting/tapping agent keeps things cool

The drill bits seem to be really good quality and sharp, I haven't used them yet but they look sharp, good protective case and the professional line of bosch is known for the quality

these drills are only suitable for drilling in soft metal. Forget about drilling a hole in hard steel. It does not work in steel and iron. Poor quality and the price is not adequate to the quality of the product...

Strong box , good drill bits. Keep away from moisture

16/7/24:- I wanted to drill 16 holes in some stainless steel (3mm thick), I broke 4 drill bits drilling 2 holes before I went running to youtube for information, apparently I was using the wrong type of drill, drilling too fast and using the wrong coolant, I took on board what was said, I bought these drill bits specifically for Stainless, I slowed down my pillar drill and I used plain water for coolant and the holes were drilled in no time at all, and not one broken drill bit, it pays to do a bit of research before jumping in and wasting time and money. If there's any problems or issues I always update my reviews so if there's no updates there's no problems.

Not normally one for reviews but I've been very impressed with these. Get what you pay for. Makes jobs so much easier. Don't waste you money snapping and blunting bits and not getting anywhere, spend a bit more and get these. Used in various places eg car, drilling through snapped screws, various applications and they've remained sharp and effective.

I got these 3 years before for a place I was working at, as a control panel wire man, only Just over £42 then, the price has changed a lot , but here is still the cheapest place to buy them, I was so impressed with the Bosch drill bits, I had to get some for myself, you do have to always use oil/cutting grease when using them, also remember that this is a very hard bit so not as flexible as some so no sideways drilling, or you may brake them but they do cut very well, when I was working I was drilling stainless steel cabinets and I never broke one, others users at work did, I don't know how as one broke a 8mm bit, I think he may have tried to enlarge a hole by using it sideways and moving it around, so I had to order them some more I got them the 19 bit size, But I have got myself now the 25 bit set and very glad I did, Yes I have other drill bits, but after using these you will not want any other bits, I did order a no name set from eBay that said that they are colbolt, but when they arrived they had HSS on the shank no CO, for cobolt, I complained and got a full refund and got to keep them, most are still unused but 2 or 3 have snapped, as they do not cut as well as these, yes you do get what you pay for, I hope these will keep me going for some time as a electronic hobbyist at home, I will not lend these out only the cheaper set of bits, I did look on the sellers website to see if he was selling these cheaper but they were not, Amazon was £5 cheaper and prime delivery, Thanks Dave 2E0DMB