ELEMENTARY WOODWORKING 



the try-square must be used against the work face and 

 joint edge only. Large squares made of steel in one 



piece are called framing squares, and are used by 

 carpenters and others for rough or large work. 

 3. The Marking Gauge. The marking gauge 

 is shown in Figs. 6 and 7. A is the gauge 

 stick, B the gauge block, S the set screw, and 

 P the marking point, or spur. The gauge stick 



FIG. 6. The Marking Gauge 



is graduated like a rule into inches and frac- 

 tions, beginning at the steel marking point; 

 but as the latter is not always exactly in the 

 right place the graduations are not entirely 

 reliable. It is safer then to set the gauge 

 with the rule in the manner shown in Fig. 7. 



o 



