I absolutely love this tool! I needed it to cut backsplash tile.Watch the video!! It shows how to use this the easy way. Lol!!!I love the directions that came with it and the sellers great sense of humor!I had the idea of hanging a bunch of mirrors on my office walls as an art installation, so off to thrift stores I went. Amongst already framed mirrors, I also got two very large (24" x 36" & 36" x 40") frameless mirrors, one thin (<1/8") and the other thick (>1/4"). I also picked up a bunch of thrift shop frames ranging from 8" x 10" to 4" x 6". That's when I ordered the glass cutter.I was very nervous about cutting the mirrors since I had never done it before. I reviewed the amusingly-written instructions included with the glass cutter over and over as I worked up my courage. Once I took the plunge, I was pleased to find out that this glass cutter is amazingly effective. I did the thin mirror first since I thought it would be easier. The thick mirror was actually the easier one. I only had 2-3 cuts (Out of several dozen) that didn't quite break as desired (Wavering line or small bulge). This was TOTALLY My Bad - I got careless during the cut. With my handy-dandy glass cutter I was able to salvage the mis-cut pieces. All in all, I ended up with over 40 small mirrors that look really cute in their mix of secondhand frames on my office walls.I did contact the seller with two questions. One was about the lack of that red padding thing in the clamp used to snap the glass. The other was about the lack of the Union Jack emblem pictured. The seller responded within a few hours. Turns out the red thing was in the baggie with the oil (Teach me to shoot off emails without checking all package contents!). The emblem was just for the ad since the "Made in UK" stamp in the metal was not clearly visible in the photo. This was slightly disappointing as I am an Anglophile and had liked the emblem, but I drew my own mutant version on in permanent marker, so all is well. Point is, the seller responded to my unfounded concerns promptly - I really appreciated it. That and the fact that the glass cutter worked so well that I, a novice to glass cutting, was able to use it so effectively first time out of the gate.I'm totally out of office wall space but have found that I like cutting glass - ESPECIALLY the the part when I *snap* it in two (It's oddly satisfying). Sooo... I'm now eyeing the hall - I think it could probably be brightened up with the addition of few custom-cut mirrors. Off to the thrift shops!You buy something like this, yeah sure. Change your mind. It works! It works great! Be careful to keep thickness about window pane thick or a bit more. Significantly thicker, not so much.My previous adventures with a cheap hardware store glass cutters did not end well, so I bit the bullet and bought these. This might be the first time I’ve made really good, clean breaks.The large roller moves more smoothly than the tiny carbide wheels I’ve used before, and I think the size also makes it a bit more forgiving of heavy pressure.The chasing pliers let me trim off long, inch-wide strips without bumps and chips. The way this is going, I’ll have my storm windows replaced in no time.One small suggestion: get a piece of large heat shrink or other rubber tubing to protect the blade so it doesn’t get damaged from bouncing around in your toolbox. But that’s a pretty small nit-pick for a product that makes it this easy to score! (hehe)This cutter is wonderful! I love that it has the glass breaker on it so you aren't having to reach for two different tools!It is just what I needed and works greatI was trying to cut very thin glass but it didn't work. Followed instructions but didn't work.Great product. The instructions are freaking hilarious and made me laugh until the point of tears. So funny that I immediately sent a screenshot to my husband, not that he will read it. I definitely understand that now that 1. This product doesn’t work without oil and without holding it correctly. Multiple sets of printed instructions with tip labels on the items that get your attention, and make you want to read the instructions. Website address, QR code, link to more instructions online with how to tips. I wish everything I buy had instructions like this, or any instructions at all. This guy makes sure you know how to use this product. This really is the PERFECT BEGINNER SET!