Wiha 71397 6 Piece Hex Insert Bit Set - Metric

Wiha is king when it comes to hex tools. Despite heavy use, none of the bits have deformed as is common with tiny hexes and torx.

Wiha makes the best quality bits that I have ever used. They are precisely machined and made of a very high-quality quality steel. I don't mind paying more for bits that last through more than just a few uses. I got so sick of paying for bits that were pretty much shot after one or two uses. That's when I decided to pay a more for a more well-known brand, and I'm so very glad I did. They fit extremely well in the driver chuck and in the fastener. The stock picture doesn't show it, but mine came in a good quality 6-hole bit rail/holder. Don't hesitate to buy this brand if you're looking for a better bit.

These fit snug (but not super-snug) into the hex screws on my Arrma Kraton 6S RC truck. I bought these specifically for use on RC cars and so far they are working out really well. I've only used the two smallest bits in the set (2mm and 2.5mm) but they fit the heads really well and seem like they wont strip out the heads like I've had trouble with using cheap-o Chineseium bits in the past. Dispite being affordable these seem to be fairly high quality. I'll edit this post later once I've had more time to see how durable they are long-term. But my first impression is that these bits are great and a killer bargain all things considered. I have been pleasantly surprised by how good these are and I will recommend them to my buddies who also run RC. I use these with a T-handle driver and with a power drill with a 6" extension.

Handy metric set to add to another kit I have. These are great bits and if you're new to Wiha you'll find that they are appreciably better in both sizing and strength than most other bits out there from any brand. Some years back they changed from Germany to Vietnam but the "new" ones honestly seem every bit as good as the old ones - truly cannot tell a difference in them for the System 4 or the regular 1/4" bits, even the teeny ones, except that they are now etched instead of stamped. I don't even know if any manufacturers still make hex bits in the US anymore but since I gradually switched to full Wiha over the years, I think theirs are better than any of the US brands I used for years including o.g. Apex. I can't believe the low-star reviews here complaining about the plastic bit holder. Geez. Makes you wonder if those people even used the bits at all before "reviewing" them. My only complaint would be that it'd be nice to have a 1.5mm and maybe an 8mm available in a strip kit like this.

Well made, exactly as described. Fast shipping.

Glad to fine these small sizes

1st set had 2 3mm bits. Amazon replaced it. 2nd set was correct. Fit is good. Not sloppy like cheaper ones. Important on smaller bits.

Recently I have noticed a number of “you assemble it” products are using metric internal hex wrenching “Allen” fasteners. While most include s small Allen wrench, these hex bits are much better. I have a few “handles” for insert bits. I have SAE bits but quality metric inserts bit were hard to find.