MISCELLANEOUS TOOLS AND METHODS OF WORK 47 
a free-hand sketch of a single dovetail joint, and 6 the 
mechanical drawing complete. 
All dimensions must be given, and as far as possible 
they should be so placed as not to interfere with the 
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Fic. 62. Drawings of a Single Dovetail Joint 
Ke - 72". > 
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clearness of the drawing. Neat, small arrowheads and 
plain, clear figures add to the general appearance, just 
as does careful lettering in titles and all printed words. 
