Planar LookThru Fabricator’s Manual page 5

Here are the four tiling components:
o Plus sign shape for flat (2x2): 935-0421-XX
o T-shape for flat (2x1): 935-0422-XX
o Plus sign shape for angle (2x2) : 935-0423-XX
o T-shape for right angle (2x1): 935-0424-XX
Plus sign shape for angle 2x2 (left) and T-shape for angle 2x1 (right)
5 Planar LookThru Fabricator's Guide 020-1315-00C