7pcs Metric Ball End Hex Screwdriver Bit Set Magnetic Ball Head Allen bits 2MM 2.5MM 3MM 4MM 5MM 6MM 8MM 1/4 Inch Hex Shank 65MM Length

Good value and great for hex head hardware on ikea-style furniture. Especially when combined with an electric screwdriver, it saves a lot of time.

Broke 5mm on impact driver

If you work in a technical trade where you're always using Allen bits to assemble/disassemble, these are fantastic. That said, the 'ball end' feature on the smaller sizes means that they're not super tough and absolutely will fail with a lot of torque (through no fault of the tool, that's just a cost of doing business for a ball end hex wrench intended to be driven by a 1/4 shank power tool)Ideally, a higher quality company would make a set of these with heat treating, tool steel, etc but these are what we got at this price level and at this price level, they're good enough. Just understand that sometimes, they break and annoyingly enough, you can't buy singles (anywhere I can find) so you're stuck for a new set every time that 3mm gives up the ghost/

I purchased these for use at work and they do not disappoint! They’re very good quality at their price point. The hex ball design works well at steep angles and does not strip fasteners. Get some!!!

While using the 4mm driver bit, with the least amount of torque, the ball snapped off. Also when using the larger sizes I noticed they did not fit my bolts. This made me think they were SAE bolts, but my SAE's did not fit either. My Northern Tool hex drivers fit. This metric driver bits and the SAE set are not made to a tight enough tolerance and they break. My opinion don't buy.

Excellent hex bits. Use for furniture building. So necessary. Must use a cordless hex screwdriver.

Very cheaply made. I've never snapped a bit like these before and today, the bit I use the most and the main reason i bought these, the head snapped off. Prior to that they worked absolutely fine and I was happy with them but the quality just isnt there.

These are decent bits, they fit and worked well.The bad: i used the 2.5 less than one minute before the ball snapped off. That was probably my fault, i had my drill in high gear..thats 1,400 rpm.Im sure these bits would be great around the house for light repairs if used gently.