Hex Allen Wrench Screwdriver Set (10 Pack in Precision & Standard Metric Sizes 0.9mm 1.27mm 1.3mm 1.5mm 2.0mm 2.5mm 3.0mm, 4.0mm, 5.0mm, & 6mm) - Perfect for RC Cars, Quadcopters, & Helicopters

Decent quality good value, will buy more as I break or lose these.

Very high quality, great price point, tight fit with no slipping. Works very well!

I just received these today. They seem to be decent quality. Time will tell if that is the case. I had to knock off one star because of the graphics on the handle. In the Amazon product photo, the sizes are clearly marked in black. On the set I received, the sizes are marked in light gray against a gray background. This is not a good idea when you are trying to quickly find the size you need. I used a fine point marker to make the sizes easier to read.

DO NOT BUY!!! Doesn't fit anything! I purchased these hex allan drivers to fit the small Metric bolts that I purchased a while back and they do not fit the 3mm to 6mm bolts. One of the drivers was bent on the end from someone trying to make it work meaning it was used.I'd give this no stars if I could.It also doesn't fit my R/C car's hardware either. Cheap China junk.This review is for the Hex Allen Wrench Screwdriver Set (10 Pack in Precision & Standard Metric Sizes 0.9mm 1.27mm 1.3mm 1.5mm 2.0mm 2.5mm 3.0mm, 4.0mm, 5.0mm, & 6mm) - Perfect for RC Cars, Quadcopters, & Helicopters.

Good quality, 7 you can use, 3 are basically watch screw size.

I ordered a 10 piece Hex screwdriver set. The 6mm screwdriver indicates on the handle that it's a 6mm hex per the diagram, but the shaft is a square drive, looks like a #3. Easy enough, why return a full set of 10 when the manufacturer could reship a replacement?Even Amazon's return process suggests contacting manufacturer and provides a link to.. wait for it.. a totally invalid website. Because Owl Tools doesn't have a Contact Us page, or actually even a working website.The Owl Tools brand seems to exclusively exist on Amazon.Tools themselves don't have any branding on them - so they just look like generic imports put into a box with their logo - which also means there isn't any advantage of buying this brand vs another that looks the same.Amazon was able to pull some other contact info out of their own records, but it required contacting Amazon customer service to get that info.That said, tools appear relatively cheap, but pretty good overall. It's not an expensive set, and I wouldn't suggest them if you need tools you're using regularly. But if you need a set of sizes that you use occasionally they're fine and when you wear out a commonly used size - replace it with a better quality tool.I still need to check all the sizes, because if they've managed to put a Square-drive metal shaft into a Hex drive handle you gotta wonder about the quality control.

Very nice screwdrivers. They seem to hold up under a decent amount of torque.

I build and fly RC planes as a hobby for many years. If there is one preferred fastener fitting I prefer to use is a Torx fitting. I like to use lock tite on my servo and engine fittings to prevent vibrations from loosening them in flight. But sooner or later you may need to remove or replace them. If they are philips or slotted heads, they are most likely to strip out before they can be loosened, that's where the torx fittings shine. the only competition for them would be a socket allen head screw. I have on occasion had some problems with button head allen fasteners, but never a torx fastener.