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The lock is solid but not very secure. Look for reviews on YouTube, it's quite scary how easy it is to crack the combo if you know what you are doing. If you use it for a gym locker is ok, otherwise look for something more secure.
I bought this for a gate that is used daily, and sometimes needs to be opened and closed at night. And that's where this thing falls on its face. It is a sturdy, solid-feeling lock and easy to use during daylight. But the black numbers against a bronze-colored background are impossible for me to read at night, even with car headlights shining at it. It needs to be higher contrast. White numbers against a dark background would be much better. I gave it 3 stars because of the build quality. But it is unusable for me, just an expensive paperweight. I don't have anything that I can use on that only needs to during daylight.
Oh, and while we're at it, I would make the number wheels larger in diameter. This thing is made for small thumbs. You have to be really careful not to move an adjacent wheel when turning them.
The short version is my product experience was so-so, and I expected better quality from Master Lock. This was my first iffy product purchase from them.
I ordered three of these at the same time. Two were new items, and the third was an Amazon warehouse deal that was a few bucks less. The warehouse deal lock was ok. It had been opened but all of the packaging was sent with the lock. There were a few scratches on the lock and the reset key was missing. That would have been disappointing if I hadn't gotten the other 2 new locks at the same time with their own reset keys. Using one of those keys it reset and worked just fine.
The first new lock I opened up to reset the combination had some issues. The lock was very stiff, as in zero lubrication and junk inside of the lock. The flimsy little reset key actually twisted and got hung up inside of the lock. The lock won't do anything but hold down paper with the reset key stuck in it. I moved on to the other new lock with its reset key and everything went fine. I almost boxed the first one up to send back for a refund, but figured it would become a warehouse deal for someone else and didn't want to create a burden for them. So I decided to drill out what was left of the reset key with a 1/8" drill bit. It took a few iterations to get everything out and scratched up the lock around the reset hole in the process, but I eventually succeeded. Then I cleaned and lubricated the lock as best I could and used my one remaining reset key in it. It worked fine then.
I purchased two Master Locks believing they’re still made in the USA but when the locks arrived they turned out to be made in China. I own 3 of these locks already but I didn’t like the made in China Master 875 because the Shackle rust. Although the packaging claim the specs is the same as the ones I assume made in the USA but I know the one I bought in Home Depot made in China I use for my outdoor storage has rusted shackle. Previously to change the 4-number combo, you stick a small key on the side hole of the lock and you put the combo numbers you like and remove the small key. These made in China 875 locks instruction in changing the combo is confusing and took me awhile to finally figure out w/o a key how to change the combination. I think Amazon should put the country manufacture of the product to let us decide if the buyer wants to buy it or not instead of hiding where the lock was made.
This is a decent padlock that offers the convenience of setting your own code, but the main issue I have with it is that you can't just enter the code and unlock it, you have to push IN and then OUT, which is a confusing mechanism. Not really an issue if you're the one locking and unlocking it, but I use it at my business where I give people the code when needed, and they can never figure out how to open the thing unless I tell them they have to push it in before pulling out, which is counter-intuitive to how every other padlock works.
Cannot be closed (locked) when left open, without the correct combination showing. This means you cannot leave it unlocked for entry, and have a service provider (landscaper, pool maintenance, cleaning lady, etc.) re-lock it upon leaving, without seeing the combination. If this is important to you, get another model of lock.
I just bought this Master Lock 175D and the last number can the actual combo number or the next higher number and it will still open. I changed the combo and it still opens with multiple combos. And on top of that, the combo change key is now bending because it is too weak. The numbers are kind of hard to turn too, but I knew this from owning previous models.
I bought this after just buying a "keyed"Masterlock"with a security rating "5"By the way,anyone that knows what this means,please tell. Anyway I have this spring house I use as a storage area& was tired of the key bit,so I decided on 175D.Ipaid about two dollars less,but the quality (or lack of) is different.Lighter and seems less secure.For the price,its worth a back-up,but you dont want to use this lock as heavy duty security. After reading the reviews, I was a bit concerned with the combination not working all the time w/o readjusting.I have not noticed this.All in all,I think there are better choices,but you can always use a mid-grade lock.If so I would recommend it,just know what you are getting.