10 best glass cutting tools

Glass cutting tools are essential instruments used in various applications related to glasswork and construction. They are designed to precisely cut glass sheets, mirrors, and other glass materials.While circular saw blades are typically associated with cutting wood and other materials, they are not commonly used for cutting glass due to its brittle and fragile nature. Instead, glass cutting tools usually consist of the following components and accessories:

  1. Glass Cutter: The primary tool for cutting glass is the glass cutter itself. These come in various designs, but the most common type is a handheld tool with a small, sharp wheel or blade at the tip. This wheel scores the glass surface, creating a controlled weak point along which the glass can be easily broken.

  2. Oil Reservoir: Many glass cutters have an oil reservoir or chamber that dispenses cutting oil onto the glass as it is scored. The oil helps to lubricate the wheel and keep it cool during the cutting process, resulting in cleaner cuts.

  3. Cutting Guides: Cutting guides or straightedges are often used to ensure straight and precise cuts. They help the operator maintain a straight line while scoring the glass.

  4. Glass Pliers: Glass pliers or breaking pliers are used to apply controlled pressure along the scored line, encouraging the glass to break cleanly along the intended path. They have serrated jaws to grip the glass securely.

  5. Safety Gear: Safety equipment such as safety glasses or goggles is crucial when working with glass cutting tools. This protection helps prevent eye injuries from glass shards.

  6. Glass Grinding and Polishing Tools: After cutting, glass edges may be sharp or uneven. Grinding and polishing tools, such as diamond files or grinding wheels, can be used to smooth and refine the cut edges for a more polished finish.

  7. Replacement Blades and Wheels: Glass cutters often come with replaceable wheels or blades. These components wear down with use, so having replacements on hand is important to maintain cutting accuracy.

  8. Glass Breaking Tools: In addition to pliers, other glass-breaking tools like running pliers or breaking bars are used to apply pressure along the scored line, facilitating clean breaks.

It's important to note that circular saw blades are not suitable for cutting glass, as they generate too much heat and vibration, which can lead to uneven and shattering cuts. Therefore, specialized glass cutting tools are designed to ensure precision and safety when working with glass materials.

Below you can find our editor's choice of the best glass cutting tools on the market
  

ION TOOL Glass Cutting Mosaic 4 Peice Kit

Based on 171 reviews Check latest price
  • The Mosaic Pliers Set features four essential tools specifically for mosaic projects. These tools are indispensable cutting, running, breaking, and shaping your glass.
  • Kit Includes, Glass Running, Breaking/Grozer Pliers, Glass Nippers, and Dry Glass Cutter
  • Curved Jaw Running Pliers with Adjustable Set Screw Controls the Amount of Pressure Applied, and rubber Tips
  • The Glass Nippers come with carbine cutting wheels are excellent for quickly small pieces of glass.
  • Buy with Confidence – We always strive to produce high quality product and offer a 100% satisfaction guarantee. If you are not happy with product, reach out to us.

User questions & answers

Question: What are the actual diensions of the tools? How long are the tools? How wide are the breaking pliers
Answer: The runners and nippers are 8" long. The breaking pliers are 6" with 3/8" jaws.
Question: Are you in the United States
Answer: ION TOOL is a US based business. We headquarter out of Utah, but operate globally. Products are produced in multiple countries. At this time we are not manufacturing in the US due to the extreme cost. All of our products listed here are stored in Amazon's fulfillment centers and will shipping times will be determined by Amazon.
Question: Are these tools made in the USA
Answer: These are currently being produced in China. We do move production from time to time so that may change. Please understand to make these tools in the USA, the retail cost would need to be around $90 for set and there is not enough consumers willing to pay that cost to make the move to USA production. Let me know if you have any other questions.
Question: should the wheel rotate
Answer: It should. If it’s not turning, try a little oil on the surface of the glass. Also, make sure you are pressing hard enough to hear that nails-on-the-chalkboard (some call it tissue-paper tearing) sound.

Product features

Running Pliers

Running Plier Jaws act as a fulcrum where pressure is applied evenly on both sides of a score line, running the score through the glass. Running pliers work best on straight cuts, do well on gentle curves too.

Breaking & Grozer Multipurpose Pliers

Glass Breaking Pliers are quality designed to help break glass along a score line or can be turned over and used a grozers to nibble glass away from the edges.

Glass & Tile Nippers

Nippers with carbide wheel blades are great for cutting glass and ceramic tile upto 3/8" thick. Control where to break with the well-designed edges.

Dry Glass Cutter

Make straight and intricate cuts with a dry glass cutter. Comes with 6 blades and solid wooden handle.

Toyo Custom-Grip Supercutter - Glass Cutter - Assorted Colors (One Pack)

Toyo

Based on 233 reviews Check latest price

Product description

Improved Design The Custom Grip Supercutter with an adjustable grip handle, improved spring-controlled oil flow system and proven TAP Wheel technology, now features a new, larger saddle The four-position saddle is adjustable for all hand sizes, relieving hand fatigue. Placed between the thumb and forefinger, the saddle allows the fingers to remain straight which will reduce the strain while scoring. The unique, patented cutting wheel improves axle lubrication and reduces rolling friction producing a cleaner score, which will give you a better edge and easier breakout. Note the Custom Grip does not use the standard Toyo Replacement Head. Use Item #5201 Replacement Head for Custom Grip Supercutter. In six distinctive fluorescent colors, the lightweight clear acrylic grip lets you see how much oil is in the reservoir. Sorry, cannot specify choice of color. Sold individually. Developed 30 years ago, Supercutters outlast other cutters by up to 25 times Toyo's Supercutters live up to their name. Comfortable to hold and easy to use, each cutter is self-oiling (when pressure is applied) for a free rolling wheel and consistent score line. The wheel is made of durable, replaceable carbide steel that outlasts conventional cutters. Delphi Tip: To prevent leaking, use only a few drops of oil in your cutter before each use.

  • Features a four-position saddle – adjustable for all hand sizes
  • Refined oil-fed system – can be used with or without oil!
  • Durable carbide steel cutting wheel outlasts conventional cutters

User questions & answers

Question: this product comes with oil or do I have to buy the oil separately
Answer: I use premium refined fluid
Question: the black portion of my handle spins and will not remain in place. is this normal
Answer: Yes! But press in slow motion so when lid pops flame will come out! If you do it fast you’ll have to press twice
Question: What thickness of glass does this cut? Most of the others have different heads for different thicknesses
Answer: Por la parte de abajo del encendedor tiene un orificio, toma el bote del gas butano que ahí mismo en amazon vende ,con los dos boca abajo introduce el pivote del bote en el orificio del encendedor y presionarlo hacia abajo y verás que el gas se introducirá.
Question: Can you tell me which replacement head to buy for this cutter
Answer: After owning many lighters over the 50 years I've been smoking, this is not a good lighter. It started failing to light after only 2 weeks. I posted a review and returned the lighter. The company never responded in any way. Don't buy.

We R Memory Keepers 0633356712992 Trimmer & Mat-Precision Glass Cutting Mat

We R Memory Keepers

Based on 633 reviews Check latest price

Product description

Over 90 years ago, William R. Hiller and his two sons began building a reliable bookbinding business. The old Provo book Bindery has emerged as one of the best bookbinding resources in the United States. Hiller bookbinding aims to keep memories safe and secure outside of photo albums because people have always sought ways to stay in touch with past history and past memories started production of the first album. The advent of the fine art of scrapbooking and paper craft continues to increase the need for high quality, functional and creative craft products and tools. In 2014, We R Memory Keepers joined the American Crafts family of brands. To date, We R Memory Keepers manufactures the most innovative, functional and high quality products loved by engineers around the world.

  • Smooth and Precise Cutting
  • Package Dimensions: 41.91 H x 1.778 L x 36.322 W (centimetres)
  • Package Weight: 1.724 kilograms
  • Country of Origin : United States

User questions & answers

Question: Is this tempered glass and can you use a heat gun to dry paper on top of it
Answer: I'm not sure if it's tempered or not - I don't have the packaging anymore. As long as the heat isn't too high or on for to long it might be OK. Lots of people use their glass mats in this way, but personally I have not tried it. I have a 12 x 12" sheet of heavy chipboard wrapped in tin foil and that is what I use.
Question: Is this product too fragile to work on
Answer: It's great to work on. I work with polymer clay and cut and scrape. Love this.
Question: Can I use this product for polymer clay? To work on not to bake
Answer: I don't see why not. It's not a huge item, but I think its plenty big enough and sturdy enough for working with polymer clay
Question: Are the measurements on the underside of the glass so they can't be rubbed off
Answer: Yes. The top is completely smooth. I love this mat, I use it all the time and it still looks new.

Strip and Circle Glass Cutter, Round Diameter Adjustable Glass Cutting Tools for Industrial Supplies

Based on 27 reviews Check latest price

Product description

Specification:

Item Type: Glass cutter

How to Cut Strips:

1. Simply nail a standard board to your workbench.

2. Place the edge of the glass against the board.

3. Slide the strip base onto the t-bar and use the scale starting at 1-2-3-4 to set the size of the strip you want to cut. Tighten the screws so that the base does not move.

4. When you apply continuous pressure while sliding the cutting wheel on the glass, the strip base moves over the edge of the board.

How to Cut the Circle:

1. Place the glass to be cut on the workbench.

2. Slide the round cutter seat on the t-bar. Use the scale starting with 6-8-10-12. Set the size circle you want to cut. Tighten the screws so that the base does not move.

3. Place the round cutter base on the glass to be cut.

4. Hold the pressure button in the center of the circular holder with your thumb to secure the holder in place. At the same time, a continuous pressure is applied while rotating the t-cut wheel on the glass.

Details to Such Cutting System:

30CM T-Bar: There are two scales on the T-bar. One reads the width of the strip to be scored with the strip base. And this scale begins with 1-2-3-4.While the other scale reads the diameter of the circle to be scored with the circle cutter base. And this scale begins with 6-8-10-12. also, this round cutting head on the end of the T-bar holds three High Quality Carbide Wheels that can cut 2-8mm thickness

Strip Cutter Base: The strip is used to cut strips from 3cm to 30cm in width, saving your hours of tedious cutting. Most importantly, all of your works will be exactly the same size.

Circle Cutter Base: The circle cutter has a 3 point base so that it holds its position, even on rough textured art glass. And it can score circles from 8cm to 60cm in diameter.



Package List:

1Set x Cutting Tool

  • CUT THICKNESS: The round cutting head at the end of the t-bar is equipped with three high-quality carbide wheels that can cut thicknesses of 2-8mm.
  • CUT STRIPS: And this belt is used to cut strips from 3 cm to 30 cm wide, saving cumbersome cutting time.
  • CUTTING DIAMETER:Furthermore, such a cutting system can be circled between 8 cm and 60 cm in diameter.
  • SAME SIZE: Most importantly, all your works will be exactly the same size, which is with high practicality
  • STABLE PLACEMENT: Round cutter has a 3 point base that keeps its place, even in rough textured art glass.

General Tools 8501 Glass Cutter, Perfect for plate glass, mirrors, window panes, custom picture frames, shelves and stained glass

Based on 87 reviews Check latest price

Product description

The General Tools 8501 Glass Cutter is perfect for precisely and smoothly cutting plate glass 1/8” to ¼” thick. This heavy-duty tool has a steel wheel with a honed angle of 120 degree for cutting single or double strength glass. Ergonomic designed tapered handle boasts a flat surface near cutting wheel for a comfortable finger position, providing the best leverage. The handle also includes a weighted ball that provides elevation to snap off scored glass.



The General Tools 8501 Glass Cutter is perfect for cutting glass and DIY projects including mirrors, window panes, custom picture frames, glass shelves and stained glass.



Instructions

• Coat cutting wheel with oil prior to scoring glass

• Measure glass and score glass surface with an even firm pressure

• Place ball of handle, or small dowel, under scored glass to elevate and press evenly on both sides of glass

****When handling glass, it is recommended to wear gloves to prevent cuts****



GENERAL TOOLS - THE PRECISE TOOL FOR DOING THE JOB EXACTLY RIGHT. Offering over 1,000 tools, we’re proud to provide tradesmen, craftsmen and DIYers around the world with a broad range of affordable, specific-purpose mechanical hand tools and precision measuring and inspection tools.



For inquiries, please contact our Customer Service Department at 212-431-6100. We strive to provide our customers with 100% satisfaction.



WORK SMARTER, MEASURE BETTER & BE MORE PRODUCTIVE WITH GENERAL TOOLS

From the Manufacturer

Glass cutter cuts plate glass from 1/8" to 1/4" thick. Cuts single or double strength glass. It has a ball end handle for snapping of scored glass. The tooth design is to remove rough edges. Length 5".

  • PRECISE/SMOOTH CUTTING- General Tools 8501 can cut plate glass from 1/8" to 1/4" thick with teeth for remove rough edges
  • HEAVY-DUTY- Steel wheel with honed angle of 120 degrees for cutting single or double strength glass
  • ERGONOMIC DESIGN – tapered handle boasts a flat surface near cutting wheel for a comfortable finger position, providing the best leverage
  • BALL END – on the end of the handle there is a ball that will create elevation to aid in snapping off scored glass
  • MULTI-USE- perfect for cutting glass and DIY projects including mirrors, window panes, custom picture frames, glass shelves and stained glass

User questions & answers

Question: wil this cut through acrylic
Answer: It doesn’t specifically cut “through” it scores the glass which you then carefully break. It might do the same with acrylic but not sure since acrylic flexes more than glass.
Question: Will this work on a thin sheet of fiber glass
Answer: No. The physics of glass cutting is fundamentally different from other materials cutting and this cutter works only based on that physics principle. Fiberglass isn't cut based on that principle and should be treated more like wood or metal when cutting. Your best bet is a saw with a higher TPH (teeth per inch) blade typically used for finer plywood or metal cuts. Just plain scissor may be an option if the material is paper thin. But this device won't cut it.

CRL Professional Glass Cutter Oil - 4 Ounce

C.R. Laurence

Based on 1 reviews Check latest price

Product description

CRL Professional Glass Cutter Oil is designed for general oil-fed glass cutters as well as production glass cutting machines. Our cutting oil extends wheel life and helps to make cleaner cuts. Cleanup is easy so there is no worrying about a mess.

  • Model number: GCO4
  • Country of Origin: United States
  • No batteries required
  • Brand name: C.R. Laurence

User questions & answers

Question: does product have an odor
Answer: Your cutter should contain a spring.
Question: I am trying to cut wine bottles with a kinkajou bottle cutter. can i use the oil with this cutter
Answer: I have been in the industry for a while. Glass Cutters are meant to be used up against a straightedge and your finger guiding the other side, if you're not using this method you're going to have wavy lines even if your head stay still the swivel makes it more accurate if your technique is correct
Question: Is this item good to use with diamond hole drill bits when cutting glass
Answer: The replacement head for this cutter is available here on amazon.com: http://www.amazon.com/gp/product/B002O0T5A0. The ASIN is B002O0T5A0.
Question: is this mainly for drilling glass or scoring it? Why not just use WD40 or 3in1? Why is this so specific oriented
Answer: Just an FYI, these answers were from 2015 - mine purchased in Oct 2016 did NOT come with oil. ugh. But yes, the wheel is there.

ION TOOL Glass Running & Breaking Pliers, 2PC Kit

Based on 304 reviews Check latest price
  • Quality Kit Includes, Glass Running and Breaking/Grozer Pliers
  • Curved Jaw Running Pliers with Adjustable Set Screw Controls the Amount of Pressure Applied, and rubber Tips
  • Using the Breaker & Grozer Pliers to Break and Nibble Glass
  • Comfortable Premium Grips

User questions & answers

Question: Will these pilers work on 3/8 inch thick glass
Answer: Great question, let me be honest I do not know. Generally used on thinner glass like 1/8". I think it will probably work, but it really depends on the glass and the how long the run is and the complexity. You can give it a try, you have a 30 day return window with Amazon. Sorry I could not be more help.
Question: How wide are the jaws on the grozers
Answer: The grozer jaw width is 10.5mm (.41").
Question: How wide are the breaking pliers
Answer: The jaws of the breaking pliers are 3/8" wide

Makita CC02R1 12V MAX CXT Lithium-Ion Cordless Tile/Glass Saw Kit, 3-3/8"

Makita

Based on 108 reviews Check latest price

Product description

The Makita 12V max CXT Lithium-Ion Cordless 3-3/8” Tile/Glass Saw Kit (CC02R1) delivers smooth and powerful cutting, with a compact design that’s engineered for ease-of-use and maneuverability. The kit includes two 12V max CXT Lithium-Ion slide-style batteries for improved balance and ergonomics over pod-style batteries. For added convenience the batteries include an on-board L.E.D. charge level indicator.

  • Makita-built motor delivers 1,600 RPM for faster and powerful cutting
  • 3-3/8" blade delivers a maximum cutting depth of 1" for a wide range of cutting applications
  • Compact and ergonomic design at only 12-3/8" long
  • Weighs only 4.0 lbs. with battery for reduced operator fatigue
  • Nickel-plated base prevents rust and tilts from 0° to 45° for bevel cuts

User questions & answers

Question: Can I use my 18V batteries? 5.0amp
Answer: Yes
Question: Can i use a 4" blade
Answer: No you can not use a 4" blade
Question: Can I cut plaster walls with metal net with it without producing too much dust
Answer: This is meant for tile or glass with the blade provided , however one remove the bottle and changes the blade , then your able to cut dry wall with little dust, not certain theres a blade for metal
Question: Is it worth the money to buy this if i already have an angle grinder with tile cutting blade
Answer: You can get wat straighter cuts using this and a speed square then you would get with a bangles grinder

Product features

Makita CC02R1 12V max CXT Lithium-Ion Cordless 3-3/8 inch Tile/Glass Saw Kit

The Makita 12V max CXT Lithium-Ion Cordless 3-3/8 inch Tile/Glass Saw Kit (CC02R1) delivers smooth and powerful cutting, with a compact design that’s engineered for ease-of-use and maneuverability. The kit includes two 12V max CXT Lithium-Ion slide-style batteries for improved balance and ergonomics over pod-style batteries. For added convenience the batteries include an on-board L.E.D. charge level indicator.

The CC02R1 is compact and weighs only 4.0 pounds. (with 12V max CXT 2.0Ah battery). With 1,600 RPM, 1 inch cutting capacity, and a large 16.9 ounce water supply tank for wet cutting applications, it is a compact and efficient cutting solution for tile and glass.

For longer run time, all 12V max CXT cordless tools are also compatible with the 12V max CXT Lithium-Ion 4.0Ah battery (BL1041B, sold separately). 12V max CXT lithium-Ion batteries are engineered with a Battery Protection Circuit that protects against overloading, over-discharging and over-heating. It’s part of the expanding 12V max CXT series, combining performance with superior ergonomics in a compact size.

Includes:

CC02R1 - Cuts Glass

Smooth and Powerful Cutting.

It is a compact and efficient cutting solution for tile and glass.

Makita-built motor delivers 1,600 RPM for faster and powerful cutting.

CC02R1 - Cuts Tile

Smooth and Powerful Cutting.

It is a compact and efficient cutting solution for tile and glass.

Makita-built motor delivers 1,600 RPM for faster and powerful cutting.

Warranty

Every Makita Lithium-Ion Power Tool is thoroughly inspected and tested before leaving the factory. If you are not satisfied with any Makita Lithium-Ion tool within 30 days of purchase, return it and Makita will provide, at Makita's option, a replacement or refund. Each Makita Lithium-Ion Power Tool, Battery and Charger is warranted to be free of defects from workmanship and materials for the period of Three Years from the date of original purchase. Should any trouble develop during the three-year period for the Lithium-Ion Power Tool, Battery and/or Charger, return the Complete Power Tool, Battery and/or Charger, freight prepaid, to one of Makita's Factory or Authorized Service Centers.

If inspection shows the trouble is caused by defective workmanship or material, Makita will repair (or at our option, replace) without charge. This limited warranty does not apply to Makita Accessories.

This limited warranty does not apply where:

- Repairs have been made or attempted by others.

- Repairs are required because of normal wear and tear.

- The Power Tool, Battery or Charger has been abused, misused or improperly maintained.

- Alterations have been made to the Power Tool, Battery or Charger.

- The Power Tool or Charger has been used with a non-genuine or 'knockoff' battery.

Disclaimer:

In no event shall makita be liable for (a) any indirect, incidental, punitive or consequential damages arising from the sale or use of the products sold hereunder, or (b) any amount in excess of the amount actually paid to makita for the products sold here under for any liability arising from the sale or use of the products sold hereunder. This limitation applies both during and after the terms of the warranty. Makita disclaims liability for any implied warranties, including implied warranties of 'merchantability' and 'fitness for a specific purpose,' after the three-year term of this limited warranty.

This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply to you.

Toyo Brass Oil Fed Pencil Style Glass Cutter #Tc10b by Toyo

Toyo

Based on 120 reviews Check latest price

Product description

Delphi Uses the Supercutter to Cut Thousands of Sheets of Glass Without Changing Heads Developed 30 years ago, Supercutters outlast other cutters by up to 25 times Toyo's Supercutters live up to their name. Comfortable to hold and easy to use, each cutter is self-oiling (when pressure is applied) for a free rolling wheel and consistent score line. The wheel is made of durable carbide steel that outlasts conventional cutters. Cutter heads are replaceable. The Brass Supercutter features a cross-hatched metal barrel which guarantees a sure grip while scoring. Delphi Kit Manager Teresa Batten cuts Delphi's glass packs with a Supercutter. Delphi Tip: To prevent leaking, use only a few drops of oil in your cutter before each use.

  • Durable brass body with cross hatched metal barrel for a sure grip – made to last!
  • Refined oil-fed system – cutter is self oiling when pressure is applied
  • Cutter head is replaceable
  • Features pencil style hand grip

User questions & answers

Question: Does this come with oil
Answer: If its glass used for making stained glass crafts it will
Question: Is it supposed to come with the plastic tube in the photo
Answer: No, any cutter you buy, you add oil Yourself.
Question: Can glass cutters be used to cut cardboard or card stock
Answer: This type of cutter is best on 1/8th inch or less glass, although it can go a bit thicker, but probably not as much as 1/4 inch. It depends on how skilled you are at cutting glass. There are special cutters for thicker glass. Strictly speaking, these 'score' or 'scratch' glass, which weakens the surface and allows it to break along the line. Once the glass is scored, there are numerous ways to break along the score. With a thicker glass, I'd try tapping along the line on the other side of the glass to get a break started, and then run it along the whole score. With 20+ years of experience with stained glass, I still don't have much luck getting a clean break on thicker glass. But I don't try to do it very often.
Question: can this tool cut ceramic tiles
Answer: I've worked in stained glass for twenty years now. What I've learned is that NONE of the pistol grip type cutters feed oil reliably, even the Toyos. What I do is put my cutting oil in a small--babyfood--jar, and dip the head in the oil frequently while cutting. Putting a small piece of the plastic abrasive cleaning pads into the jar keeps from damaging the head of the cutter. Never use an oil feed cutter.

EAB Tool 2118901 4-1/2-Inch Diameter Glass Cutting Blade

Exchange A Blade

Based on 60 reviews Check latest price

Product description

Exchange-a-Blade's blades, bits and accessories are made with high-quality standards while also minimizing waste through an innovative recycling program on many items. Specifically designed to cut glass, glass block and mirrors. Can be used cutting dry or wet (recommended). 4-1/2-Inch diameter with 7/8-5/8-Inch arbor.

  • Specifically designed to cut glass
  • For wet or dry cutting
  • 4-1/2-Inch diameter
  • Fits 7/8 to 5/8-Inch arbor

User questions & answers

Question: Would this blade work with my skilsaw
Answer: It probably will. Since it is around 4 inches in diameter, you would have a maximum of 2 inches of cutting distance. What I use it in is a 4" hand held grinder( they cost about $25. and up) and use it to cut tile when I am doing projects around the home. For instance, I used it to cut tile for our new walk in shower, both in the garage, as well as in the shower area, when I had to cut little squares around the drain. We also used it in conjunction with my chop saw with a 10 inch blade that was also designed for cutting tile and glass. Because we couldn't keep it wet, it had a tendency to crack tiles, so we scored the tile with this blade and then used the chop saw to finish the job. This was much faster than using a wet saw with a fence ( like a table saw). Hope this helps.
Question: will this cut through a glass bottle
Answer: I used it to cut off the bottom edge of glass mirrors so that new granite counter tops would fit. It worked fairly well, but one had to be careful not to put too much pressure on the blade or the glass would get too hot and crack. I had to be patient so that I didn't attempt to go all the way through in one spot, but work back and forth till the remaining cut was thin enough that if it cracked it cracked along the cut. It might work if there would be a way to rotate the bottle slowly so that one doesn't heat up one area so much that the bottle would crack before you had scored it all the way around.
Question: does this blade come to sharp point with raiser sharp edge or is it a bit blunt like a tile saw blade
Answer: just like the way you said at the end. to use efficiently-- tape the glass side of tile, blade rotate at high speed and then push tile slowly and gently to the blade wet.

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