You can measure from top to bottom or bottom to top with this reverse rule, Bon Tool T-Square.   Ideal for use with measuring and cutting drywall but can also be used as a drawing instrument for drawing or testing right angles.  This T-Square is made with 3/16 inch heavy duty blade to reduce curling or warping and the head is made with 3/8 inch flanger.
          Features:
- 48" x 22" x 2"
 - 3/16" Heavy duty blade reduces curling and warping
 - Reverse ruled for measurement from top to bottom or bottom to top
 
  
  
  
  
  
