26 ELEMENTARY WOODWORKING 
with the bevel flat on the stone. A drop or two of oil 
may be used to lubricate the stone, the tool beg worked 
back and forth on the face of it. Especial care must 
be taken to avoid a rocking motion, which will produce 
a curved edge instead of a flat one. 
Fic. 35. Common Forms of the Brace 
After the rubbing, reverse the chisel, lay the flat side 
firmly on the stone, and draw toward you. This is to ++: : 
straighten the wire edge which has been turned over 
by the rubbing. The wire edge may then be removed 
