CARBYNE Tamper-Proof Hex (Allen) Bit Socket Set - 28 Piece, SAE & Metric. Includes Metric Hex 2-14mm, SAE Hex 5/64" to 9/16". S2 Steel Bits • From a Family-Run Tool Company Based in the U.S.A.

I overlooked the listing and hadn't noticed these were security bits until I got them, but they've held up very well to abuse in spite of this. I run these bits on an impact gun everyday and I have only ever broke the 5/32 and even then it broke more because of my fault than the tool's. This set has a very good range for its size as well. Though its a minor thing, its also very handy they include the adaptors in the box. Less things you have to carry off to work on something.

I had not heard of this brand of tools. These are VERY STURDY! I have put quite a bit of force on these and they haven't felt like they were going to slip or break. I'm going to check on more carbyne tools and see if the quality persists.

great kit. I abuse tools and haven't been able to break these yet. Good sturdy case is high quality as well

So far there hanging in greatly without problems. Great buy.

Worked great for me

ALL IN ONE CASE WHEN YOU NEED THEM JUST PULL OUT THE CASE.VERY STRONG.

No complaints

Me gusto q están muy fuertes