MEASURING AND MARKING TOOLS 7 
The try-square may be made entirely of iron or 
steel, but sometimes the beam A is of wood with a 
brass strip C to protect it and to take the wear. The 
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Fic. 4. Methods of using the Try-Square 
blade B is of steel and is divided, like a rule, into 
inches and fractions of an inch. Try-squares are made 
in several sizes, the most convenient for general use 
being six inches. 
In using the try-square the beam should be held 
firmly against the face or edge of the stock. When 
working near the end of the piece, if the beam projects, 
reverse its position. For nice, accurate work the knife 
point instead of the pencil should be used for lining. 
When it is desired to saw off the end of the stock it 
is first necessary to mark or square clear around it with 
the knife and try-square. In doing this the beam of 
