Inside Corner Knife, 6.5"x11.5" - LEVEL5 | Pro-Grade | Metal Hammer End | Drywall Gyprock Plasterboard Sheetrock | 5-312

Really a nice size, made well, easy clean

For me, it was wasted money. The smaller version works much better.

This seemed like a good idea as a homeowner doing a small amount of drywall work. But the knife is so far out of square that there ends up being a very large gap underneath the knife when trying to spread mud evenly into a corner. The knife also has very little flexibility, so if you try to press it deeply into the corner, you may end up damaging the surrounding drywall. With how much pressure is being applied, the corner will be very nicely feathered, but it will be hard to get a sharp corner.This seems to be meant to give you a nice corner in a single day, but I think I'd be better off just using a flat knife and doing all left corners on one day and all the right corners on a second day. You can probably still do it all in a single day if you use fast drying "hot mud" instead of all purpose joint compound anyway.

As many others reviewed, it is not 90 degrees so messed up a few corners before we realized and stopped using it. Unfortunately the return window closed before we had a chance to send it back so we’re stuck with a tool we won’t be able to use.

*EDIT* 2-10-20 I thought I had previously changed this rating butI hadn't so I am now. When I originally had this issue with the handle and left the initial review they promptly contacted me to make it right!They went so far above and beyond I was amazed to put it lightly, so much so I bought a complete set of their auto taping tools, bazooka, 10" & 12" boxes, handles, extensions, corner boxes, smoothers etc.I knew they would stand behind those tools after this experience with their customer service. So far I've had 0 issues with everything else including the replacement corner knife they sent me. A+++++Thanks Guys!!*Old review*Well I would rate this much higher as the angle, feel and handle are great except the handle itself fell off as it wasn't secured to the metal portion of the tool and fell off the first time I used it...... Pretty Disappointing that I have to epoxy it on myself as it wasn't done right when it was manufactured.

Well made and gets the job done.

Makes mudding corners easy for beginners , im by no means handy so mudding corners for DIYs were annoying and time consuming with this tool i am able to mud corners faster and more efficiently

This was recommended for DIYers. It seems sturdy. Handle is comfortable. However, like others have said, it’s not square. Maybe it isn’t meant to be but…The gap between the corner of the tool and the corner of the wall is way too big no matter how it’s angled. And it’s too rigid to press in without removing too much mud along the sides or even mar the drywall. Result: Corners end up rounded and way too much mud gets removed from under the tap edges.Bit disappointing. This brand seems to be fairly highly recommended by people who do drywall professionally. For me, it’s been a waste of $.Been just using a 6” knife instead.

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I reveived the Angle corner tool but one side of the blade was not ''deburred'' why?

I was expecting better, i had to push so hard to get into the corner that I'll have carpel tunnel in a week. It might work on an inside 45, the knife is flared out so much that it's impossible to use on an inside 90.