MASTER LOCK Heavy Duty Disc Padlock [Combination] [Stainless Steel] [Outdoor] M40EURDNUM - Best Used for Storage Units, Sheds, Garages, Trailers and More

I needed some good locks to lock down my father’s gates to his fence as we go through probate to settle things. These locks are great to protect from gaining access to the gates. I had some of the thinner metal locks on the gate and some cut through that lock. Well, they will not cut through these locks. The are really heavy and great quality. I did find the instructions a little hard as mines got torn off when I opened the packaging and it took me an hour to try and understand where are they located and I finally found the passcode and stuff. It was torn off with the packaging so I never found it where it said it’s was. Need to do a better job of placing the passcodes where they will not get torn with the packaging and then you can not find it as I thought it did not come with a passcode. Other than that, excellent heavy locks to secure a gate or anything more securely. They are expensive but worth the extra cost.

Needed a lock for a Pod shipment -This one is easy to reset the combo with the included key, easy to open and easy to lock.Quite heavy and feels like a secure piece of hardware.Much easier to use than those locks with the combo in the bottomI hope I don't need to replace it - but if I had to, I'd get one of these again.

Junk. The tumblers are loose, difficult to turn and almost impossible to line up. I can’t even tell you how many times it took me to get the lock open with the preset combination. When I finally got it open I followed the instructions to set a personal combination and now the lock will not open at all. Don’t waste your money.

Lock arrived all dirty and grimy, as if it had been used and returned. Number wheels are fairly difficult to spin, both due to internal resistance (I hope that will ease in time/use), and the fact that they are recessed a bit so my big fat fingers have a hard time reaching and only spinning one at once. I have to use my other hand to hold the numbers that I don't want to move while I spin others.Otherwise, it seems very sturdy and a good lock for our shared storage unit. I tried to find one that had a combination lock so I dont have to distribute keys.

I have one prior to purchasing this one so, I know it works well. This helps with securing our junk.

As someone that picks and decodes master locks frequently and publicly laughs at them for how bad they are, this is ACTUALLY a half decent lock.Pros:1. Thick lock with boron carbide shackle that is very difficult to cut. I tried cutting it with a pair of Texas keys and to no avail. (See photo)2. Due to the grittyness of this lock's internals decoding it is near impossible to achieve. However this can be a con (see cons below).Cons:1. The lock's internals are gritty and comes with no lubricant in it at all which makes it a bit hard to open and close as well as using the dials. What this means is that in the winter time it could potentially freeze up and become unusable. However, all you need to fix that is to shoot it with WD-40 then apply lock lubricant in it afterwards when you receive it. Do this every few months and it should work perfectly.2. The lever that pulls the shackle down is a bit flimsy and has potential to break. Make sure it's in good by knocking it in with a hammer otherwise it might come out.So because of those two con reasons I will give this a 3/5.

The plastic cover gets in the way of the spinning of the numbers. Seems to be rather stiff and inconsistent but also appears very strong.It just takes a while to dial up the numbers and get it undone

First off, customer service from The Big Red Toolbox is fantastic. I had a problem with the product (total fluke) I received and had it resolved very quickly. These guys know what they are doing.As for the lock its quality, it is fantastic. You will need to lube the lock up with some oil when you receive it due to some of the moving parts but after working the oil in for about a minute the lock works flawlessly. I can also say this lock will be a thief's nightmare, its very very hard to cut this off. You pretty much need an angle grinder to cut this thing off. Already received 2 locks, if I need any more I will return here for the same lock from the same seller. 100% recommend this product and company.