The Mosaic Glass Cutter is our recommended hand tool for cutting glass mosaic tile. This tool cuts glass up to 3/8-inch thick with minimal crushing and splintering, and it easily cuts molded tile into quarters, halves and triangles. It is also great for nipping up small pieces of stained glass, although it is not a scoring tool for making long straight cuts in stained glass. This is a compression tool similar to an ordinary tile nipper in the sense that you squeeze tile between the blades. Note that the circular blades do not actually rotate. Replacement blades are available, although the blades should last for years if you don't abuse them by attempting to cut materials other than glass.
You should not use ordinary tile nippers to cut glass tile. Ordinary tile nippers were made for glazed ceramic tile, and they tend to crush and splinter glass. For most artists, the mosaic glass cutters tend to pay for themselves in what they save in wasted tile.
Safety and Cutting Tile
- Always wear safety glasses with side shields when using the cutters.
- Make sure that you don't cut glass around people not wearing safety glasses. Flying chips could potentially hit their eyes as easily as yours.
- Never use a mosaic glass cutter to cut materials other than glass, especially hard porcelain. The wheel-shaped blades can shatter.
- Be aware that cutting glass tile can produce sharp tiny slivers. Never sweep off a work surface with your bare hand. Use a vacuum or broom.
- Steel hand plier with cushion grip
- Dual carbide steel cutting blades
How To Cut Glass Tile
Hold the cutter over a cardboard box or plastic dishpan to catch broken pieces and tiny slivers.
Hold vitreous glass upside down when cutting so that you can see the embossed pattern of ridges on the bottom. Make sure you position the blade so
that the ridges do not interfer with it. It is easier to cut across a ridge or in a crease between two ridges than it is to try to cut with the
blade on top of a ridge where it can slip off.
It is much easier to cut up four or five pieces of tile and choose the one that fits best than it is to try to trim one piece to a certain shape or size. It is quicker too. Keep your rejects in a small pile and pay attention to the shapes that are in it. If you don't use a certain size or shape as often, try to cut fewer pieces like that. This is much more effective than trimming a piece down to what you need, and it is a lot less tedious.
We do not have replacement springs, and no, your cutters are not defective if the springs fall off. The springs tend to fall of all hand tools eventually, even the most expensive brands. Keep your pinky fingers inside the handle instead of outside with the rest of your fingers and use that to open the tool. This is basic shop/studio practice for using any type of plier tool, most of which do not come with springs in the first place.
For more advice on designing your mosaic project or cutting and grouting tile, please see our
Mosaic Frequently Asked Questions
or our List of How-to-Mosaic Pages, which are described by topic.