MISCELLANEOUS TOOLS AND METHODS OF WORK 385 
true in many cases; but.there are certain kinds of work 
where sandpaper, if properly used, is allowable. 
Fic. 47. The Screw-Driver 
It must always be kept in mind that a surface which 
has been sandpapered has become “ gritty,” i.e. the fine 
sand has come off and is more or less imbedded in the 
wood. Consequently sandpapering must not be done 
until all tool work has been finished, as the grit will 
take the edge off the best tool, 
and the finer the edge the more 
quickly will it be ruined. 
Again, a sandpapered surface 
is always a scratched surface, 
and the finest of scratched sur- 
faces cannot compare with the 
perfectly smooth, satiny sur- 
face produced by a sharp plane. 
However, there are many places. —<—7 =e 
where neither the plane nor 
spokeshave can be used, and 
here it is allowable to use sand- 
paper after the tool work has been carried as far as 
practicable. 
Fic. 48. An Exercise involving 
the Use of Sandpaper 
