This wrench appears to have been designed specifically to handle plumbing fittings in tight spaces. It has a slim form factor, at around 7/8" thick at its widest point. Depress the trigger on the backside of the wrench to open the jaws (up to around 3" wide), The jaws ratchet closed (down to around 1"). The three chucks which slot into the base of the handle offer some additional capability, mainly for torquing on nuts in very confined areas. Overall, the wrench and its attachments appear to be of middling quality. Not professional grade, but good enough to get the job done when used sporadically, and a decent value for the price. The included plastic clamshell case feels a little cheap - I wouldn't expect the 'living hinges' to last under frequent use.

As soon as I opened the box, I am surprised how light weight this thing is. It can't be metal, and it can't grab anything. I returned it without 2nd thought. What surprised me is that Amazon starts to sell this kind junk now.

I recently received the NSCMQSL Universal Adjustable Double-Ended Wrench for review and found it to be a versatile and innovative plumbing tool. The design allows for one-handed operation in tight spaces, making it incredibly convenient for various plumbing tasks. The adjustable open-end wrench at one end is smooth and easily adjustable, and the handle's slots for additional tools for smaller under sink fixtures are particularly handy for homeowners tackling DIY projects. It comes in a plastic case That’s fitted for each part. In summary, the NSCMQSL Universal Adjustable Double-Ended Wrench is a convenient and innovative tool with a unique design that makes it suitable for one-handed operation in tight spaces.