Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

I don't normally stop to review products unless it's something I use quite a bit and have tried other brands of the same type of product. Well I've burned, dulled, busted, even horribly abused all sorts of drill bits. They all seem to be about equal pretty much across the board. Some maybe a little bit better in performance. Nothing that really stood out to brag about. Ok I picked up this inexpensive set (I was going say cheap set because the price is very reasonable for what you actually get). These fricken drill bits are absolutely worth every single cent I spent on them. So worth it that I'm out here looking for a large set that has both metric and standard in the M42 8% cobalt grade these are. If you peck drill with this set I don't doubt they will last a good long time. And the warranty is incredible. Lifetime replacement. No one can beat that. I'll have to say tho, I haven't had to contact them yet for getting any replaced if needed. Let's just hope that would be a smooth process as well. I'm hoping. But I gotta tell you, I'm pretty busy at the moment, but stopped just to write this because I'm actually out here looking for a larger set from Stroton as where these came from. They are everything the boast in advertising and then some. Goes thru steel like it's no big deal. But remember to peck drill so you don't over heat the bit. That goes for any drill bit out there. But if and when you get these and try them, you will not be disappointed. At least I'm not. But then again I am 57 years young. So I have a little bit of experience on how to actually use a drill bit properly. If you don't have much knowledge about drilling, remember one thing, peck drill. If you don't know what that means, look it up. You will get way better results and your bits will last twice as long if not more. I know one thing, I'll get more than twice the expected life out of these due to the fact that they perform incredibly well. Like they stand out better than the average norm. They got me as a loyal customer. I really like'm. You'd have to tear them out of my dead hands to gett'm from me. So don't even try. Buy your own. They're right here, where you're reading this review. Good luck, have fun and happy drilling. Now a message to the seller of these bits.... where are the large sets of these bits. I don't see any. If you have one send me. Link. If not, than you'd better get one quick before I begin testing other sellers that have larger sets. Thanks for the bit. Good sht for real...!!!

They are really able to drill hard metal. I had a couple of screw who lost their head, I wanted to drill through to remove them. I was able even it was not easy, Nissan bolt are no joke. It is true the small bits broke easily, but Strton are great and replaced them right away. Very very satisfied.

Overall, I am very happy with my purchase of the Metric M42 8% Cobalt Twist Drill Bits Set. It’s a solid product that performs exceptionally well on hard metals like stainless steel. The 8% cobalt alloy and 135° split point tip make a noticeable difference, allowing for much cleaner and faster drilling than with standard bits. The included metal case is also a nice touch and keeps the bits well-organized. While it’s a great product, there are a few things that could be improved. The size markings on the bits are a bit small, which made it hard to quickly identify the right size without a closer look. Additionally, the case's latch feels a little bit flimsy, so I have to be careful when carrying it around to make sure it doesn't pop open. These are minor annoyances, but they prevent it from being a perfect 5-star product. Despite these minor issues, I would still recommend this set. It's an excellent choice for anyone who works with hard metals, and its core functionality is top-notch. With a few small design tweaks to the case and markings, it could easily be a 5-star item.

Great product. I will keep buying these. The small ones do tend to snap a lot but the do get the job done. Its worth the money.

These drill bit are some of the best I’ve used. They drill through hardened steel like butter. I always use tapping fluid so I can’t attest to their longevity without it but with it I think they will last a good long while. Just don’t get in a hurry, let the bit do the work.

Testate su acciaio da 5mm forando con la n.4 come pilota e sembra indistruttibile, le altre più grandi le usate solo per allargare il foro. La 4,5 usata come pilota si è spaccata al solo contatto con il pezzo, alcune si sono scheggiate lateralmente, probabilmente difetti di fabbricazione. Ho contattato il fornitore che mi ha subito inviato le punte in sostituzione, solo per questo meriterebbe 10 stelle. Provate su barra in ferro da 5mm e forano come se fosse burro. Consiglio pienamente l'acquisto.

I purchased these bits sometime ok...They are very sharp and cut into any material with ease and some cutting fluid of course!! However I did break a few on a project and dulled 4 bits...I contacted costumer service and within a few days they sent me a complete replacement with no questions asked.... Best companies costumer service I dealt with in forever!! Awesomeness!!

Las compré para inoxidables y se soporta las cargas como todo con el uso prolongado van perdiendo filo pero dura bastante para su precio

Very good quality

La boite est assez qualitative et répond à ce qu'on lui demande. Les forets sont de très bonne facture et cela se confirme à l'usage. La coupe, que ce soit à l'entame ou pendant le percage, est très bonne. Il faut pour cela respecter les vitesses de perçage et parfois, l'utisation d'un lubrifiant de coupe sera nécessaire,, il serait urgent que les utilisateurs de forets sachent cela au lieu d'incriminer le foret. Un foret a casser, sans raison apparente. Après conact avec le vendeur, Stroton, un envoi de rechange m'a été envoyé très rapidement. Merci pour la réactivité et le sérieux de ce vendeur/marque.