Four years ago, I threw out the question: "What is the best bottle cutter on the market?" A lot of readers weighed in. Some gave recommendations for their favorite glass bottle cutter, others just wanted a definitive answer, which is what I wanted. Finally, FINALLY, we decided to get to the bottom of the bottle cutter question and have a product shoot out between four popular models. Our competition has not been without a little drama, as one of the bottle cutter makers has, apparently, gone out of business since the inception of this review. That being the Bindu Studio's Bottle Cutter. We've decided to leave the Bindu in the review just in case some of you stumble upon one secondhand. That being said, it's time to introduce each of our competitors (and their final grades):

• Creator's Bottle Cutter (A): Buy on Amazon
• Ephrem's Bottle Cutter Kit (A+): Buy on Amazon
• Diamond Tech Crafts G2 Bottle Cutter (D)
• Bindu (B): $50 original retail price. (No longer available to buy new...)

Besides the individual pieces, the G2 came with a 'clinker' to insert inside bottles to help their separation by 'tapping' them. This is not something I'd recommend, even with a tapper on hand! It also came with 2 pieces of emery cloth and one cutting head. 

Eventually, the assembly was finished:

Setting it up to score was easier than I thought it was going to be. All it took was a few adjustments of the upper arm and lower arm to get the device perpendicular to the bottle, which is imperative to get a proper score.

The setup resulted in a very nice looking, even cut:

I used the hot then cold water bath means of separation, which the instructions for the G2 recommends, and it was a huge fail.

I tried a second time and achieved another nice cut:

But it resulted in another bad break:

Would the 3rd time, with a different type of bottle, be the charm? 

Nope. In this case multiple hot/cold baths didn't separate the bottle, so I tried the candle flame/cold water method. Still no separation.

Okay, if the 4th attempt didn't work, I was going to give up. As it turned out, I got a perfect cut with hot/cold water separation:

Because of the design of the G2, bottles with wide mouths require their lids to be intact. That's because you have to punch a hole in the lid to slip the top of the cutter into. I gave that a try with a frappuccino bottle, with bad results. This is because it's very difficult to punch a smooth hole into the exact center of a metal lid. Not doing so means a wavy score line:

And then, after all that jockeying with top of the cutter and trying to keep it stable, this happened (I glued it back together and forged ahead):

Now, the G2's instructions say that it can cut a bottle on its rounded edges, so I thought I'd give it a try.  This is where all those fussy adjustments came in handy. First, I tried it on the neck:

I got a nice cut, but the separation was a huge failure:

That last one was a thick champagne bottle, so I thought I'd try something thinner. In this case, a Bloody Mary Mix bottle:

Again, I got a nice cut, and a nearly successful separation. At this point, it was time to move on to our next competitor. 

 

Read It!: Bottle Art: Reduce Reuse Recycle 

Check out Bottle Art: Dazzling Craft Projects from Upcycled Glass for great bottle cutting project ideas!

 

  Amazon - $9

What impressed me about it was its solid construction. Steel threaded rod, wing nuts, and hex nuts; 1/8 aluminum brackets; rubber feet, and nylon (or possibly UHMW) rollers all added up to a hefty unit. Also, the cutting head on the Bindu has 6 (!) numbered cutting wheels, so you can keep track of which ones you've used when the old one gets dull. 

Setting up the Bindu for scoring was a no-brainer. Just adjust the bracket with the cutting wheel to the length at which you want to cut your bottle and away you go. 

My first attempt resulted in a nice cut:

Separation with candle/cold water, as suggested by Bindu's instructions, wasn't a total failure, but it wasn't good either.

My second attempt was pure perfection (below). As for cutting on a slant like the G2, Bindu's instructions imply that it may be done if you shim the cutting wheel/turret with washers. The idea is to adjust the angle of the cutting wheel to match the slope of the bottle. Not only does it sound tricky, it sounds like another post! Which is why we're going to quit while we're ahead with the Bindu and go on to our next contender. 

Ephrem's Bottle Cutter 

Honestly, when I took this little thing out the box, I wasn't terribly impressed. Formed sheet metal and no-wing nuts? Harrumph. Although it DID have 3 cutting wheels, which was nice. Also in the box were a candle, some emory cloth, and a small bottle of sanding compound. (Interesting.) Two of the nylon (or possibly UHMW) guide rollers and shoulder bolts were not attached to the unit. Since there were no assembly instructions, they could have been overlooked before shipment or perhaps they came apart in shipping.

No matter, as it was quite obvious where they went. 

The set up for Ephrem's was pretty easy. It was just a matter of loosening the bracket and adjusting for length. Again, since there was no wing-nut, I needed a pair of pliers and a screw driver to adjust the bracket. (Also note that the adjustment length isn't that long, so there are limitations of which to be aware. But for most applications, it should be fine.) Now, for my first attempt, and, yes, I used one of the G2 fails:

Like its predecessors, I got a nice, even cut:

And, will wonders never cease, I achieved perfection on the first try with candle/cold water separation as Ephrem's suggested! So why success on the first attempt??  I think it might have to do with the squatty nature of the Ephrem's. The fact that it's made out of compact, formed sheet metal and there are no wing-nuts to make room for, it can sit close to the ground which means it has really good stability. As far as cutting on a slant? The maker offers an adapter on their website for $6 to make such cuts. 

But maybe that first cut was a fluke....

Nope. And look at the size of that bottle! (Champagne, anyone?)

Then, just for fun, I decided to try to salvage the frappuccino bottle fail from last time using Ephrem's. Again, perfection!

The Creator's Bottle Cutter

Opening its box was a joy. NO assembly! As for my first impressions of the unit itself, it was obvious that a lot of thought had gone into its design and construction. This is what a 100 dollar bottle cutter gets you: injected molded ends with honeycomb for rigidity, 1/4" steel shafting, rubber-coated steel ball bearings, an aluminum backbone with integrated ruler, and very 'grippy' silicone feet. Oh, and a mark on the top of the backstop so you can gauge when your bottle has made a 360 degree rotation. (Very thoughtful.) It also comes with 2 rubber rings, which you'll see later, to direct hot and cold water for hot and cold water separation. 

A shot of the integrated ruler:

Included is also a nylon (or possibly UHMW) and foam pad to protect your palm. Basically, you're supposed to put the pad, nylon side down, on the bottle, and place your palm on the foam. This makes the bottle slip easily as you hold it in place.  

Another thing to note is that the Creator's cutter itself is spring loaded, so it is pushing up on the bottle as you rotate it--you don't push down, more like just hold it in place. This feels a little weird at first, but only after using other bottle cutters. If you're new to bottle cutting, it wouldn't be an issue. 

Now let's get down to business. Here is my first attempt:

I tried making two different scores at two different lengths on the bottle picture above, but the lines went all wonky. I think it was the nylon pad that did it. Yes, it makes the bottle slip easily as you hold the bottle in place, but it also means the bottle might slip away from the backstop. If that happens, you won't get an even cut. I didn't even attempt a separation with that bottle, so I tried another, this time nixing the nylon pad thing. That score was much better. 

Creator's suggest either flame/cold water OR hot/cold water baths. I tried the former and it looked like it separated nicely, but.... 

after I cleaned the bottle, it revealed an iffy separation: 

For my fourth attempt at scoring I decided to USE the pad again (not pictured) now that I got the slip-factor under control (you have to rotate and keep pressure on the backstop simultaneously):

This time I used the hot/cold water method and the two rubber rings that I mentioned earlier to guide the hot/cold water along the score line.

Perfection:

The Kinkajou Bottle Cutter

After the folks behind the Kinkajou Bottle Cutter read my roundup, they offered to send out one of their bottle cutters for me to add to the review. I'm going to nut shell it, so here goes...

The unit itself is bigger and heavier than expected (not necessarily a bad thing). It came with sanding paper, a 'glass finishing tool' (to pry off jagged edges left on after separation, which I'd never do, because if you get an even cut, you should never be left with jagged edges), stretchy separation rings, and a bunch of stickers (!)

Using the Kinkajou isn't all that difficult, just slip it over a round bottle, adjust the two outside screws to fit it around the bottle, then engage their accompanying levers. To score, engage the cutting wheel lever and spin the bottle until you have a score line around the entire bottle. Sounds easy, right? It is...IF YOU WATCH THE HOW-TO VIDEOS ON THE KINKAJOU WEBSITE. Otherwise, you'll make one wonky cut after another. Even then, you need to finesse this thing. The problem is you can't apply any torque whatsoever with your hands. Doing so will result in a bunch of uneven cuts. Like this one:

Once you get the hang of it though, it's fairly easy to get an even score line. 

However, if you plan to cut even a slightly square bottle or jar, like the one below, forget about it. The cutter gets hung up on the angles and won't spin. 

Hung up on the edges:

There are things I do like about the Kinkajou. Its construction allows for easy visibility of the cutting wheel, which is great. I also like the pliability of the separation rings, which are much stretchier and therefore easier to use than those that accompany The Creator's. But.....that's about it, I'm afraid. I just can't get over the torque issue. It's too unpredictable for me. And then there's the whole 'not even slightly square bottle or jar' thing. For more predictable cuts and for versatility in bottle shapes, I'd go for the Ephrem's for a bit less in price. Grade-wise, I'd give the Kinkajou a B, and that's for round bottles only. GRADE UPDATE: Murray commented how the Kinkajou won't score a level line on a slightly slanted bottle either, so for that reason, I'm going to lower my grade to a C. 

The product review unit was provided by Kinkajou. All opinions are mine.  

Conclusions

FINAL NOTE:

None of the retailers of these bottle cutters supplied products for this review. It was entirely funded by Curbly. As for the opinions of the products, those are mine and mine alone. If anyone has any further questions about the individual products reviewed, I'll do my best to answer them for you. Just ask in the comments below. 

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