Customer Reviews for Utility Knife Plastic Sheet Cutting Tool

This tool was a life saver. Purchased this after trying to cut Optix plastic light diffuser panels with a standard utility knife. Works much better than a standard utility knife and you can sharpen if it becomes dull. The handle is a good size also for my big hand! Not sure why the bad reviews. I pulled the knife toward me scoring the plastic several times using a clamped straight edge. Flipped the plastic over and placed the straight edge over the score and snapped the plastic. Easy!

I was skeptical first. In fact I bought an open box item. Probably some one got frustrated by it. The key for the success is to have a good straight edge preferably aluminum or anything similar. I used an old subzero fridge door handle I saved long time ago. Comes handy for projects like these. In fact I had to cut a 30 x 36 inch 1/8 thick plexus glass to eight pieces in a shape shown in the picture to make a double glass structure for a gate I was building. No regret, performed very well. Once you score the first pass, make sure you make at least 11 to 14 passes, after that hold the two section close to the score line and snap, it wouldn’t get any better than that. Simple and efficient. It is all about holding straight and consistent. The repeated pass make all the difference. As you make the passes, clean the lines so that you have a better idea about the depth and the quality of the line. For small or short pieces, five to six pass is enough.

To anyone saying this doesnt work - you are probably using it wrong. You apply heavy pressure and drag the knife toward you to score the plastic, and you make many scores before attempting to break the plastic along the score line. This might seem counter-intuitive because what appears (to the untrained eye) to be the “blade” does not really touch the plastic. The knife just touches the plastic at one little point. See photo. The knife makes long strings of plastic as it cuts. I was cutting .250 acrylic sheet and this worked very well. Also make sure you are scoring all the way to the very edge of your plastic. Start your break from each end first, then work your way toward the middle.

Bought this to cut 0.093 optix plastic sheet. Ran the line several times. Dulled the blade. Broke the plastic not even close to a straight line. Guess I will be using my circular saw instead. Do not waste your time with this. It is straight garbage.

It cuts ok. Seems to be the main debate is whether or not it cuts "at all." It does for regular plastic. I only used it on a standard plastic storage bin / tub (Sterilite brand), to make a few crawl spaces for a hamster "cage," on both the base part and the lid (which seems a little harder material). The lines came out sloppy, partially because I rushed it a bit, so if you want a higher level result then you are going to have to set all that up yourself. I'm wondering if those who said this thing is dull maybe got a bad version of it (??) Mine is moderately sharp, but I might think having some kind of simple sharpening stone handy would come in good if you are planning to do a LOT.

I read some of the other reviews claiming this tool is worthless, however, I can not agree with that. I purchased this tool about two months ago to be able to cut my plexiglass sheets without the table saw. This tool works just as advertised. To get the most out of this tool, it requires several light passes. You have to hold the tool at the proper angle in or for it to cut correctly. You will know this by the sound and the fact that you can see it cutting the sheet. I take about 6-7 passes and then snap the piece at the score line using the edge of my table saw. The more passes the more you ensure a clean cut. It's important to cut the plastic sheeting prior so that you don't remove it from the piece you won't be using. For that I simply use a razor to cut the sheeting at approximately the location of the score. I highly recommend trying this tool. For the price you can't go wrong.

It had a mind of its own. It often went off-course, away from the straight edge, even though I clamped the straight edge at both ends and pressed the cutter to the straight edge while scoring. I got wavy, way out-of-line edges. I tried carefully to remove the worst edges and failed (see photos), but none of this would've happened if the tool was well-made. I followed the directions meticulously. The material I was "cutting" was OPTIX acrylic sheet (http://www.homedepot.com/p/OPTIX-24-in-x-48-in-x-093-in-Acrylic-Sheet-MC-13/202038048), which seems to be a good product.

I was kind of skeptical after reading all of these reviews but I gave it a shot. Not only is this a sturdy product, but it worked absolutely perfect. It's not the tool that isn't working, it's the user. I bet you all of these people that rated this product are scoring like they would with a razor knife. To have this work properly you need to place the knife on the plastic/lexan/acrylic and draw the knife towards you. It will make a rough scratchy sound as you draw it towards yourself. As you are pulling it towards you should see curly strings of plastic being removed. Repeat this 5-10 times making sure you are going edge to edge. Once finished with your passes place the line you just scored onto the edge of a table or bench and apply gentle pressure until it snaps. It should snap right on your line. I just made 48" cuts and they turned out perfect.

Took one look at knlfe and saw it had no sharp serfices. Returned to Home Depot. Ordered online.

It works but you may need to pass it over the same line multiple times prior to snaping the Plastic Sheet.

Did not cut a straight line on plexiglass and scratched my surface. Not good. Will not use again.

The knife what’s worked well. Ordering it and other things from Home Depot was a bad experience though, one I won’t repeat ever!!

ugh so tired of buying products that are so inferior. I have one thin piece of plexiglas, I watched youtube videos on how to cut, followed directions using this product. It barely made a mark on the plastic much less cut into it or "scored" it. I will now need to return it - another trip to the store - and get it cut there. Garbage product.

It barely cut. I would not purchase it again or recommend it to anyone else.

Not as helpful as I thought it would be

Did the job, but not very sharp. But is was cheap enough for a single project. Not something I would recommend.