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Glaziers' Rulers and Squares
4 products
Glaziers' rules and squares are measuring and marking tools designed for cutting glass. Their profile and rigidity allow the glass cutter to be guided accurately along the cutting line.
Types included
- Professional glaziers' squares, for marking and cutting at right angles
- Special glaziers' squares, for larger sheets
- Special glaziers' protractors, for measuring and transferring angles
These are Metrica-brand products.
How to choose
The choice depends on the size of the sheets you normally work with: the length of the arm must cover the longest side of the cut. For cuts at angles other than 90 degrees you need the protractor. Ease of grip also matters, because the square must be held still while the glass cutter runs along it. For heavy use, choose sturdy tools that do not warp with use and keep the accuracy of their reference edges over time.
AMES Srl works on a quote basis: tell us the sizes and the type of work and we will recommend the right tool.
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Frequently asked questions: Glaziers' Rulers and Squares
What are glaziers' squares used for?
Glaziers' squares are used to mark the glass cut at a right angle and to guide the glass cutter along the line. The rigidity of the profile lets you follow the edge accurately, without the cutter wandering during the movement. They are bench or site tools, used before every cut.
What length of square should I choose for glass sheets?
The arm length must cover the side of the sheet you cut most often. The special glaziers' squares are for larger-format sheets, while the professional square is designed for the most common sizes. Measure the sheets you usually work before choosing the model.
What is the special glaziers' protractor used for?
The special glaziers' protractor measures and transfers angles other than a right angle, useful when the cut is not at ninety degrees. It lets you transfer the angle onto the glass precisely before cutting. Check that the scale is legible in the light of your workshop or site.
Which tool should I choose among rule, square and protractor for glass?
Each tool has a different function: the rule is for marking straight lines, the square for marking right angles, the protractor for transferring precise angles. If the job involves several marking operations, it is worth having one of each type. They are all Metrica brand, so they go well together.
Who uses glaziers' rules and squares?
They are used by glaziers, window fitters, sheet-metal workers and anyone working glass for furniture, shop windows and made-to-measure mirrors. The tools are used before cutting, to mark the line and check that the measurement matches the drawing, avoiding wasted sheets and rework.
How do I mark a glass cut correctly?
Rest the square or rule on the sheet, hold the edge steady and score the line with the glass cutter in one continuous, firm stroke. Do not go over the line again, because the glass may break unevenly. Cut straight after marking out, then snap the glass along the scored line.
How do I work with glass safely?
Wear work gloves and safety glasses when cutting or handling glass, because splinters can cause injury. Work on a clean, stable surface and keep sheets upright for transport. Pick up fragments straight away with a brush and dustpan, never with bare hands.