SUNEX TOOLS 3504, 3/8 Inch Drive Impact Extension Set, 4 Pieces, SAE, 3" to 15", Cr-Mo Steel, Radius Corner Design, Wobble Drive, Steel Ball Retainer, Dual Size Markings, Storage Tray

Professional grade tools at an entry level price. Half the stuff with a MAC Tools or Matco stamp is made by Sunex so that should speak for it self. Cant really beat it

Put these through a ton of abuse already and they're still as straight as the day I got them. The black coating is nice. They don't slide around in your hands. Just gives them a bit more grip which I love. I also love the semi-wobble nature of these. It's a great idea, but can become slightly annoying when you just want a straight-on extension. Still, I'd rather have the option. You can get into some tight spots with these. Highly recommend.

The great set is all in one. Good quality and price

Must have for any garage.

I don’t normally do reviews but I am very happy with Sunex products and the customer service behind them. I am a Diesel Tech and work primarily on Class 8 tractors and trailers. I’ve had this set for about a year and half. I use the crap out of them on my Milwaukee fuel mid torque 3/8 impact which has I believe max 210 ft lbs of torque. They’ve held up tremendously. Two weeks ago I used the 5” extension in this set and wore out the end pretty bad to the point where a socket wouldn’t stay on the end. That next Monday I got on their website and did a Sunex express warranty claim. That evening I was sent an e-mail confirming my warranty was in the works. Then that Thursday I had not just the 5” extension that wore out, I had a whole new set on my doorstep! Can’t beat that with a stick. They might not be Snap on quality but at a fraction of the price and an awesome warranty I’m gonna be getting a lot more Sunex stuff in the future instead of getting ripped off on the tool truck.

Just get it last Sunday, yesterday when I use it to reach and open a Accura transmission bolt, it just broke.Today I called sunex service line at Seattle, the stuff told me they don't wareanty the hand tools, just air tools, but sunex website show hand tools got life time warranty, I don't know who is correct.Look at the fracture surfac is brittle fracture, the chrome molybdenum alloy must have enough toughness, it must have some deformation happen before fracture. But this one is not, it looks like chrome vanadium alloy that has no toughness.If some other guys use this impact extension with air gun might get serious injured.So to the person who work with Sunex: Please ask your quality control department to check your product is qualified or not.And if you can replace a 3/8 extension 15 inch, I will be happy. Thanks.

Excellent product. Great quality and finish. Would definitely recommend these over snap-off brand.

Best overseas brand of tools there is.

Bulky compared to some of my other name brand extension but they’re holding up well.

インパクトレンチでの作業幅が広がりました。最も早く出会えていたらと思います！

I have been using these professionally for a couple months and they have become my go-to extensions when I'm using my impact. They seem well made and durable, and the longer extensions are very handy for those hard to reach bell housing bolts.

Came on time, good price. Work really well so far, don't think i'll have any issues with them breaking as the seem to be a good quality

Minty 10/10 would buy again