InstantChange 6-5/8 in. Retractable Utility Knife Black/Gray 1 pk

if the yellow button does not release the blade and you have to open this knife (by removing the two screws)  you need 4 hands to put this tool back together. clever idea but I am going back to a simple fixed blade knife in a holster...

Impossible to follow directions to get blades out. I would give it no stars if possible. What is black button in back used for. Apparently nothing. Most useless tool I have ever purchased. Would return if I could remember where I got it. Black triangular insert fell off in process and can’t get it back on.

Bought this knife to use at my part time job where I break down 150 - 170 cardboard boxes in a couple of hours. I need a knife to operate like a well oiled machine. I had one from one of your competitors but had to give it up because they don't make blades for it any longer. No one makes blades to fit it so had to try new knife. This model is the second I've tried. The first was not a Stanley.\
1. The button on top of the knife, while depressed, does not slide easily to move the blade in and out of the casing for use. It keeps hanging up on the position notches as I try to slide the blade in or out. In my job, the blade must go in and out many times easily, without hanging up.\
2.  I have fairly strong hands for a woman, but when trying to insert a new blade, I had difficulty getting the small yellow button depressed deeply enough so the new blade could be inserted properly.\
I'm disappointed to take this knife back because it fits my hand. I thought a Stanley product would be better machined to fit together so the parts would work more smoothly together not jerk, tug and yank at my hand while trying to use it. This may seem like a small issue to you but my job is important to me. How your tool operates in my hand makes a lot of difference in how much time it takes me to do my job. A rough operatingId knife like this one can double the time it takes to do my job. I cannot afford that. Purchasing this knife was a mistake.

Stanley sent me 7 to replace 1 that did not work.  ALL SEVEN DID NOT WORK!.  9 utility knives in total, failure rate 100%

Couldn't figure out how to get first blade in, looked at reviews...returning, don't need the hassle...Stanley, it COULD HAVE been a great product, but I wouldn't have in my toolbox if you gave it to me!!!

NOT user friendly. Instructions useless so I am taking it back.

I tried for 15 minutes to insert blade into knife and gave up. The yellow button cant be pushed in so that blade will lock in place. Instructions poor. Throwing it out. A waste of money

Worst tool I ever bought. 1 hour of fiddling and threw it away

I too was one of those who got stung with this marvel of bad engineering.  While it isn't as difficult to use as most reviewers say it is, this is only true once you know its secrets.  One shouldn't have to go on line and watch a video to figure out how to use a utility knife.  Whoever came up with this abomination should be ashamed of themselves.  They took a simple device and made changing the blade so difficult and unnecessarily complicated that it is no longer useful.

Looked like a nice knife. Great sale price. I bought four of them. Took forever to get cardboard packaging out of knife. After an hour I gave up trying to get the blade installed. I have several 10-499’s that work well changing blades. This one is a looser. I will return them to ACE where I bought the. Stick with model 10-499.

I bought this to use around the house as I always have several projects going in. I use a lot of utility knives, but this one was very hard to figure out the quick change blade. Not easy!

Bought this to use knife for a home DIY project using vinyl tiles.  The grip was was a winner, use of knife was easy and the blade stayed locked in place unlike other brands.  It’s a winner.u

My only Stanley tool that I have had trouble with. Brought it to cut leather and haven’t been able to change the blade since day one.

I bought this a year ago and still razor sharp and Love when I use it

I just recently purchased this tool and I love it because it is so handy around my house from cutting cardboard and carpet.

I have owned a lot of utility knives over the last 50 years,  and this one tops the list.\
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It is steady in hand ,  makes a straight cut,  and the blade  change feature works well.  I use it with the Stanley  carbide blades for best service

I've used mine for months. This thing kicks butt and I've dragged it through mud, water, you name it.

I this one lives in my tool belt. I have tried many other brands and this one wins.  Love it!

I can't get the top slider to move all the way to the front so I can push the button to add a blade.  Very poor quality.