8 ELEMENTARY WOODWORKING 
the try-square must be used against the work face and 
joint ail only. sol squares made of steel in one 
Fic. 5. The Framing Square 
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 
Fic. 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. 
