Plano Quattro/Octo Mitre Squares :
These squares are available as 8-position squares (OCTO) or 4-position squares (QUATTRO). QUATTRO and OCTO lock at 45, 90 and 135 degrees, OCTO also locks at 22.5, 67.5,112.5,and 157.5 degrees. Choose appropriate size from the drop down menu above.