HORUSDY 23-Piece Hex Head Allen Wrench Drill Bit Set, S2 Steel, Metric & SAE Hex Bit Set, 2.3" Long

I work IT. I use this pretty often at my job. They work great.

Very good quality and you can have the job in seconds. You know what I mean.

Good for price 12 mm use for nipple inside opening as key

I've seen reviews about poor quality used as designed, you should have no issues. I'm a master mechanic, I use them in a cordless drill motor to run in and out. I've had them for over a year and no issues thus far. I got them mainly for the added length which is helpful to clear a lot of things. If I need to break a fastener loose or tighten something I use the proper allen socket for that task.I can admit I was missing a 3/16 bit in my set, I contacted them and they issued a replacement set immediately. I'm very happy with this purchase.

Buena herramienta versátil y cómoda para trabajos que requieren fuerza y precion

Works well with impact too. They don't round out. I would recommend them. The orange is a great way to find tool when working with many tools.

I like the variety of both metric and SAE and the 2 I've used so far show no sign of rounding like some I've used. Unfortunately, the one size I needed when I ordered these (4mm) is the one they mis-cut. Per my photos, it looks like they cut the 4mm hex head upside down so it's where the shaft is supposed to click into a holder. The other end is merely round - (not sure why) but the only tool I can use it in is a drill that can hold it like a regular drill bit. I'll be able to make it work for this project but kind of disappointing.

I've read reviews that say that these aren't very durable. I've now assembled two bedframes and haven't noticed any unnecessary wear, so they can't be too bad. I'll definitely update if these bits suddenly start to disintegrate but for the price, you can't beat them.

These work brilliantly would recommend